DAZ Shop Chart - Bad Math
x3dnub
Posts: 7
I love your site, but lately I'm having second thoughts.
Either 40%, 50% or 60% discount, the math shows wrong in the chart.
This has been happening too much lately to be coincidence. There has to be a nasty bug in your calculation formula?
I do notice after a day or two it gets fixed some times. Please explain I'm concerned I cant trust what your site advertises.
“Dystopian Beauty” New Releases - 30% OFF
Buy 2 “Dystopian Beauty” new releases and get an EXTRA 10% off*
Buy 3 or more “Dystopian Beauty” new releases and get an EXTRA 20% off*
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Comments
That seems correct. (1-0.7)(1-0.8) is 0.56?
I think the math stacks so 30% and another 20% isn't 50%. Specifically the extra 20% is 20% off the price left after the first 30% is gone. Mathematically this would be
Discounted Price = Price * (1-0.3) * (1-0.2) which ends up with a net 44% reduction rather than 50%. It's just how Daz "stacks" discounts.
OK, lets do it like this A product is $100. 30% off is #30, so that leaves the price as $70. And extra 10% off $70 is $7 so now the price has gone down to $63. or if you bought the 3 then you got an extra 20% off so 20% of $70 is $14, so in that case your final price would be $56 making a discount of 44% as the rolling banner says. These are not stacking discounts.
Hope this helps clarify my point.
Abandoned Train Station
$32.95 - (30%) $9.885 = $23.065
$32.95 - (40%) $13.18 = $19.065
$32.95 - (50%) $16.475 = $16.475
$32.95 - (60%) $19.77 = $13.18
LG09 Combat Mech
$34.95 - (30%) $10.485 = $24.465
$34.95 - (40%) $13.98 = $20.97
$34.95 - (50%) $17.475 = $17.475
$34.95 - (60%) $20.97 = $13.98
No, it's how discounts stack in general - this is not a Daz thing. If they had meant they were adding 10 or 20 percentage points to the discount they would have said that, or more likely simply said that you would get 40% or 50% off instead of 30%.
Thank you all for clearing that up.
I think you wrote that backwards, i.e. should be (1-0.3) * (1-0.2) which is indeed 56%. However this is the ammount you are left with, that is you are paying 56% or the original price, meaning you are getting (1-0.56) = 44% taken off. The banner for the sale cited says "up to 44% off" so it's not misleading.
The total discounts would not be 40, 50, or 60% off. 30% for 1 item; 30% off 2 items + 10% off of the reduced price; 30% off 3 or more items + 20% off the reduced price. The additional discounts are always taken off of the discounted price, the discount percentages aren't added together and then applied. It looks like you came up with 60% by adding 30% +10% +20%; the discounts for buying 2 items and for buying 3 or more don't stack, they are mutually exclusive. You would get either the extra 10% or 20% depending on how many item you buy.
For example, if you bought 1 item retailing for $10.00, it would get the 30% discount, bringing it down to 7.00. If you added a second 10.00 item, the new retail total, 20.00, would be reduced by 30% to 14.00, and THAT new subtotal would be reduced by 10%, bringing your new total down to 12.60. If you bought 3 ifems at 10.00 each, the 30.00 total would be reduced by 30% to 21.00, and THAT subtotal would be reduced by 20% to 16.8.
I know it can be cofusing, but that is the way sales are typically done. The recent release of Elijah is a good example. Some customers had loyaty discounts of an additional 90%. Since the new release was already discounted by 30%, simply adding the discounts together would have resulted in a 120% discount, which obviously can't work, unless DAZ is going to give you money to take the product.
The "buy one get X off, buy two get y off..." sales make sense to me because they encourage you to buy more and you feel like the more you buy the better the deal yet they don't demand you to spend outrageous ammounts to get the good deal.
On the other hand the loyalty discounts confuse me. I think they are counter productive for many of us. I feel like a spend a fair amount here, certainly several hundred bucks a year which for a hobbyist is not insignificant. I know others spend way more than that of course. But when I see many people, not just a few, getting 90% loyalty discounts and I get 10% I figure "wow, I only got 10%, I guess I would probably have to spend $10,000 a year to get that level discount!" (which is probably not true but who knows) and "That's a great deal at 90% off. With my little 10% it's meh!" (which is also not true but there ya go, because ... human). Bottom line: feel like it's not that good a deal and no sale while others are snapping them up for almost nothing.
Sometimes I think it would be better if it was done like some sort of frequent flyer program. You get x DAZ-bucks for every dollar you spend, you can redeem them but with restrictions (within x days of issue, never on high holy days, months with an R, whataver). And there are tiers so if you spend more than $y in a year you get double DAZ-bucks or something Then rather than reading posts about how everyone else gets a better deal than you, we'd see the occasional "and with my DAZ-bucks it was just 1 dollar!" posts but we would never really know what other people are getting. It rewards loyalty without discouraging those who are not apparantly loyal enough.
But then again I'm the guy who wonders why if every $5 table at a casino is filled and there are five rows of people waiting behind to get in and every $25 table is empty, why are there fifty $25 tables and only two $5 tables. It would seem having a hundred people playing $5 a hand would be smarter than three people playing $25 a hand but what do I know.