Loading...
> >

Math is broken at DAZ3d

jack_mcdjack_mcd Posts: 0
edited January 2023 in The Commons

This is the thrird time this week.

 

A sale is offered,

"Best of 2022: Animals & Creatures Get 50 percent OFF the best-selling Animals & Creatures of 2022
Plus an EXTRA 20 percent OFF* when you buy 2+

To me that adds up to 75 percent off.

Then why is my cart only showing 60percent

Or we have todays flash sale

"Flash sale Get your party on with the deal of the day! 50percent off Party themed items Get an extra 20percent off when you buy any new release over 5.00"

my cart show 67percent


Until 50 and 25 is 75 (not 60) and 50 and 20 is70 (not 67) I will no longer shop at DAZ3D.

Tired of it.

 

 

Post edited by frank0314 on

Comments

  • frank0314frank0314 Posts: 14,254
    edited January 2023

    Percentages off do not compound in the retail industry. It would be a base of 50% and then 25% of 50% added to the base of 50% off

    Post edited by frank0314 on
  • lilweeplilweep Posts: 2,550
    frank0314 said:

    Percentages off do not compound in the retail industry. It would be a base of 50% and then 25% of 50% added to the base of 50% off

    Isnt 0.5 x 0.25 + 0.5 = 0.625 tho? Or did I miss something
  • jjoynerjjoyner Posts: 635

    jack_mcd said:

    This is the thrird time this week.

     

    A sale is offered,

    "Best of 2022: Animals & Creatures Get 50 percent OFF the best-selling Animals & Creatures of 2022
    Plus an EXTRA 20 percent OFF* when you buy 2+

    To me that adds up to 75 percent off.

    Then why is my cart only showing 60percent

    Daz3D Math is not for the faint of heart!!  At Daz3D, usually the second percent off only applies to the remaining price after the first percent off has been taken.  So, after the first 50% off, 50% remains.  Then, 20% is taken of that remaining 50%; that's another 10% off (0.5 times 0.2 = 0.1 or 10%). So, a total of 60% has been taken off the original price.

    Joe
    (Retired math professor)

  • Richard HaseltineRichard Haseltine Posts: 102,291

    frank0314 said:

    Percentages off do not compound in the retail industry. It would be a base of 50% and then 25% of 50% added to the base of 50% off

    not just the retail industry.

  • namffuaknamffuak Posts: 4,172

    For the sake of the OP - real world example I posted on a similar thread:

    This is the way all such multiple discounts work. Several decades (!) ago, I bought a set of towels at a Macy's white goods sale. There were three discounts in play: 25%, for opening a new account; 40% white goods sale; 50% discontinued merchandise. The original total was around $120. The first two cashiers tried applying all three to the initial price - 0.25 X 120 = 30 (25% off); 0.40 X 120 = 48 ( 40% off); and 0.50 X 120 = 60 (50% off) and final total was 120 - 60 - 48 - 30 = -18. There was consternation - "This can't be right! He gets a new account and the towels and we owe him $18!" It took a senior cashier half an hour to straighten them out "50% off $120 is $60, leaving $60; 40% off $60 is $24, leaving $36; and 25% off $36 is $9, leaving $27 - so he owes us $27".

    (At that particular time of my life, I would have cheerfully taken the towels and the eighteen bucks and left.I was opening the account not for the additional nine dollars, but to be able to spread the payment out over three months.)

  • GordigGordig Posts: 10,171

    jack_mcd said:

    "Best of 2022: Animals & Creatures Get 50 percent OFF the best-selling Animals & Creatures of 2022
    Plus an EXTRA 20 percent OFF* when you buy 2+

    To me that adds up to 75 percent off.

    Apart from what everyone else has already pointed out, 50 + 20 does not equal 75.

  • frank0314frank0314 Posts: 14,254

    Moved to the Commons as it isn't Daz Studio related.

  • SolitarySandpiperSolitarySandpiper Posts: 566

    Many, many people are caught out by this including Daz themselves... we recently had a gift card sale which was advertised as up to 20% 

    15% giftcard discount  plus an extra 5% for a new release.

    Misunderstandings on this issue are very, very frequent.

  • LeatherGryphonLeatherGryphon Posts: 11,648

    It's almost as difficult as understanding time zones.

  • AgitatedRiotAgitatedRiot Posts: 4,437

    Break out the slide rule if you want to do DAZ math.

  • Silver DolphinSilver Dolphin Posts: 1,614

    AgitatedRiot said:

    Break out the slide rule if you want to do DAZ math.

    They should teach this in school if the power ever goes out people will be caught using pencil and paper to do arithmatic. LOL

  • FishtalesFishtales Posts: 6,161

    Silver Dolphin said:

    AgitatedRiot said:

    Break out the slide rule if you want to do DAZ math.

    They should teach this in school if the power ever goes out people will be caught using pencil and paper to do arithmatic. LOL

     I prefer to do it in my head i.e. mental arithmetic, which they don't teach in school anymore.

  • AgitatedRiotAgitatedRiot Posts: 4,437

    Silver Dolphin said:

    AgitatedRiot said:

    Break out the slide rule if you want to do DAZ math.

    They should teach this in school if the power ever goes out people will be caught using pencil and paper to do arithmatic. LOL

    Didn't you know they don't do math by hand anymore?

  • AgitatedRiotAgitatedRiot Posts: 4,437

    Fishtales said:

    Silver Dolphin said:

    AgitatedRiot said:

    Break out the slide rule if you want to do DAZ math.

    They should teach this in school if the power ever goes out people will be caught using pencil and paper to do arithmatic. LOL

     I prefer to do it in my head i.e. mental arithmetic, which they don't teach in school anymore.

    I do that, also. 

  • chris-2599934chris-2599934 Posts: 1,835

    Here's how to do it:

    • Convert each discount into a decimal - so 50% and 20% are 0.5 and 0.2
    • Subtract each individual discount from 1 (this will give you the multiplier for the amount you pay, instead of what you save) - you now have 0.5 and 0.8
    • Multiply the individual numbers together to get an overall  figure - 0.5 x 0.8 = 0.4
    • You will pay 0.4 x the original price
    • or, if you prefer (1 - 0.4) x 100 = 60% off
  • wwtraviswwtravis Posts: 39

    The apparent reason for "DAZ math" is to avoid giving more than a 100% discount (or even reaching 100%). If additional discounts (% off) are always based on the % remaining from the prior discount, you can never reach a total 100% discount. A thousand 'additional 10% discounts' will still never reach 100%.  It also means that subsequent additional % discounts are overall worth proportionately less that if they were applied to the base price.  The math is not hidden or unpredictable or difficult, just inconvenient.

  • SevrinSevrin Posts: 6,309

    wwtravis said:

    The apparent reason for "DAZ math" is to avoid giving more than a 100% discount (or even reaching 100%). 

    No, the reason is that is how multiple percentages are calculated in commercial transactions.  People would complain a lot less if they remembered that sales taxes are also calculated on purchase amounts less any discounts.  When you purchase something priced 10 dollars at a 50% discount, you pay sales tax on the net amount of 5 dollars, and not on the original 10 dollars shown on the price tag.

  • LeatherGryphonLeatherGryphon Posts: 11,648

    Fishtales said:

    Silver Dolphin said:

    AgitatedRiot said:

    Break out the slide rule if you want to do DAZ math.

    They should teach this in school if the power ever goes out people will be caught using pencil and paper to do arithmatic. LOL

     I prefer to do it in my head i.e. mental arithmetic, which they don't teach in school anymore.

    Can you do it in octal and hexadecimal? 

  • LeatherGryphonLeatherGryphon Posts: 11,648
    edited January 2023

    Sevrin said:

    wwtravis said:

    The apparent reason for "DAZ math" is to avoid giving more than a 100% discount (or even reaching 100%). 

    No, the reason is that is how multiple percentages are calculated in commercial transactions.  People would complain a lot less if they remembered that sales taxes are also calculated on purchase amounts less any discounts.  When you purchase something priced 10 dollars at a 50% discount, you pay sales tax on the net amount of 5 dollars, and not on the original 10 dollars shown on the price tag.

    That was my point about time zones.  Ridiculously easy to comprehend yet... here we are. frown  (the human race is doomed)

    Post edited by LeatherGryphon on
  • AgitatedRiotAgitatedRiot Posts: 4,437

    LeatherGryphon said:

    Fishtales said:

    Silver Dolphin said:

    AgitatedRiot said:

    Break out the slide rule if you want to do DAZ math.

    They should teach this in school if the power ever goes out people will be caught using pencil and paper to do arithmatic. LOL

     I prefer to do it in my head i.e. mental arithmetic, which they don't teach in school anymore.

    Can you do it in octal and hexadecimal? 

    I'm a binary and ternary sort of guy.

  • MelanieLMelanieL Posts: 7,464

    LeatherGryphon said:

    Fishtales said:

    Silver Dolphin said:

    AgitatedRiot said:

    Break out the slide rule if you want to do DAZ math.

    They should teach this in school if the power ever goes out people will be caught using pencil and paper to do arithmatic. LOL

     I prefer to do it in my head i.e. mental arithmetic, which they don't teach in school anymore.

    Can you do it in octal and hexadecimal? 

    I used to be able to add and subtract - not tried for a while! (I used to be a programmer back in the ancient days) Never learned to multiply or divide though. 

  • FishtalesFishtales Posts: 6,161

    LeatherGryphon said:

    Fishtales said:

    Silver Dolphin said:

    AgitatedRiot said:

    Break out the slide rule if you want to do DAZ math.

    They should teach this in school if the power ever goes out people will be caught using pencil and paper to do arithmatic. LOL

     I prefer to do it in my head i.e. mental arithmetic, which they don't teach in school anymore.

    Can you do it in octal and hexadecimal? 

    That is why they have computers for the masses now, the closest I got was probably watching HAL in 2001: A Space Odyssey :) 

  • DustRiderDustRider Posts: 2,785

    LeatherGryphon said:

    Sevrin said:

    wwtravis said:

    The apparent reason for "DAZ math" is to avoid giving more than a 100% discount (or even reaching 100%). 

    No, the reason is that is how multiple percentages are calculated in commercial transactions.  People would complain a lot less if they remembered that sales taxes are also calculated on purchase amounts less any discounts.  When you purchase something priced 10 dollars at a 50% discount, you pay sales tax on the net amount of 5 dollars, and not on the original 10 dollars shown on the price tag.

    That was my point about time zones.  Ridiculously easy to comprehend yet... here we are. frown  (the human race is doomed)

    On top of the general time zone confusion people have, just try to get people to understand that noon is seldom actually the middle of the day (i.e. solar noon), and that on the same day, solar noon is a different "time" on the clock depending on where you are (moving east or west).

  • NorthOf45NorthOf45 Posts: 5,533

    There are 10 kinds of people in the world, those who understand binary, and those who don't.

  • AgitatedRiotAgitatedRiot Posts: 4,437

    DustRider said:

    LeatherGryphon said:

    Sevrin said:

    wwtravis said:

    The apparent reason for "DAZ math" is to avoid giving more than a 100% discount (or even reaching 100%). 

    No, the reason is that is how multiple percentages are calculated in commercial transactions.  People would complain a lot less if they remembered that sales taxes are also calculated on purchase amounts less any discounts.  When you purchase something priced 10 dollars at a 50% discount, you pay sales tax on the net amount of 5 dollars, and not on the original 10 dollars shown on the price tag.

    That was my point about time zones.  Ridiculously easy to comprehend yet... here we are. frown  (the human race is doomed)

    On top of the general time zone confusion people have, just try to get people to understand that noon is seldom actually the middle of the day (i.e. solar noon), and that on the same day, solar noon is a different "time" on the clock depending on where you are (moving east or west).

    The devil's hour is 3:00 am. Just think how confused he is. 

  • Richard HaseltineRichard Haseltine Posts: 102,291

    DustRider said:

    LeatherGryphon said:

    Sevrin said:

    wwtravis said:

    The apparent reason for "DAZ math" is to avoid giving more than a 100% discount (or even reaching 100%). 

    No, the reason is that is how multiple percentages are calculated in commercial transactions.  People would complain a lot less if they remembered that sales taxes are also calculated on purchase amounts less any discounts.  When you purchase something priced 10 dollars at a 50% discount, you pay sales tax on the net amount of 5 dollars, and not on the original 10 dollars shown on the price tag.

    That was my point about time zones.  Ridiculously easy to comprehend yet... here we are. frown  (the human race is doomed)

    On top of the general time zone confusion people have, just try to get people to understand that noon is seldom actually the middle of the day (i.e. solar noon), and that on the same day, solar noon is a different "time" on the clock depending on where you are (moving east or west).

    Not to mention that day length (noon to noon) varies through the year due to the eccentricity of the earth's orbit and Kepler's second law.

  • wooferwoofer Posts: 17

    Sevrin said:

    No, the reason is that is how multiple percentages are calculated in commercial transactions.  People would complain a lot less if they remembered that sales taxes are also calculated on purchase amounts less any discounts.  When you purchase something priced 10 dollars at a 50% discount, you pay sales tax on the net amount of 5 dollars, and not on the original 10 dollars shown on the price tag.

    About 20 years ago, I remember wanting to switch to Verizon internet, and they had a sweet bundle promotion where they gave you $100 off a router, which they were selling for $100, thus making it free. I already had a router, and this was for the lowest end model, which could be bought for only around $15-$20 in a store, so I understood it wasn't really a $100 value, but hey, free is free.

    Then at checkout, what they did was bill you $100 for the router, charge sales tax on that (8.875% in NYC), and then take $100 off the total. So I still ended up paying ~$9, or half the cost of the router. And since the router promotion was part of a bundle offer, there was no way to opt out.

    Was the first time I felt like I got scammed. So yeah, I guess the sales tax rule depends on how sleazy the company is!

  • kyoto kidkyoto kid Posts: 41,198
    edited January 2023

    jjoyner said:

    jack_mcd said:

    This is the thrird time this week.

     

    A sale is offered,

    "Best of 2022: Animals & Creatures Get 50 percent OFF the best-selling Animals & Creatures of 2022
    Plus an EXTRA 20 percent OFF* when you buy 2+

    To me that adds up to 75 percent off.

    Then why is my cart only showing 60percent

    Daz3D Math is not for the faint of heart!!  At Daz3D, usually the second percent off only applies to the remaining price after the first percent off has been taken.  So, after the first 50% off, 50% remains.  Then, 20% is taken of that remaining 50%; that's another 10% off (0.5 times 0.2 = 0.1 or 10%). So, a total of 60% has been taken off the original price.

    Joe
    (Retired math professor)

    ...so true. 

    I have a background in general algebra, plane geometry, trigonometry, calculus, celestial mechanics, particle physics, as well as abstract algebra and Daz Math still throws me for a loop at times even after I think I finally got it figured it out.

    I feel it may have something to do with either imaginary numbers or transcendental number theory..

    AgitatedRiot said:

    Break out the slide rule if you want to do DAZ math.

    ...maybe a qunatum computer. 

    wwtravis said:

    The apparent reason for "DAZ math" is to avoid giving more than a 100% discount (or even reaching 100%). If additional discounts (% off) are always based on the % remaining from the prior discount, you can never reach a total 100% discount. A thousand 'additional 10% discounts' will still never reach 100%.  It also means that subsequent additional % discounts are overall worth proportionately less that if they were applied to the base price.  The math is not hidden or unpredictable or difficult, just inconvenient.

    ...sort of like the old problem of moving exactly half the remaining distance to a wall with each successive step. Theoretically you get closer and closer but never physically reach the wall itself.

    Of course "summing" it all up is mathematics professor Tom Lehrer from Harvard University

     

     

    Post edited by kyoto kid on
  • SevrinSevrin Posts: 6,309

    woofer said:

    Sevrin said:

    No, the reason is that is how multiple percentages are calculated in commercial transactions.  People would complain a lot less if they remembered that sales taxes are also calculated on purchase amounts less any discounts.  When you purchase something priced 10 dollars at a 50% discount, you pay sales tax on the net amount of 5 dollars, and not on the original 10 dollars shown on the price tag.

    About 20 years ago, I remember wanting to switch to Verizon internet, and they had a sweet bundle promotion where they gave you $100 off a router, which they were selling for $100, thus making it free. I already had a router, and this was for the lowest end model, which could be bought for only around $15-$20 in a store, so I understood it wasn't really a $100 value, but hey, free is free.

    Then at checkout, what they did was bill you $100 for the router, charge sales tax on that (8.875% in NYC), and then take $100 off the total. So I still ended up paying ~$9, or half the cost of the router. And since the router promotion was part of a bundle offer, there was no way to opt out.

    Was the first time I felt like I got scammed. So yeah, I guess the sales tax rule depends on how sleazy the company is!

    That was a rebate, rather than a discount. 

  • kraftwerkdkraftwerkd Posts: 42
    Maybe it's because I took the "dumb math" in high school where we learned how to settle bills, calculate interest and all that fun Consumer Math.. I never have any issues with Daz sales math. A second discount is always taken off the remainder, not two discounts applied to the base total. It's pretty simple stuff, and I'd hedge I'm a lot younger than quite a few folks here.
Sign In or Register to comment.