Sorry to beat a dead horse, but... yeah, math is hard.

Screenshots from just this moment comparing two things on sale at the same time at the same rate of 75% off.

Ex 1: Regular Price = $49.99
75% off price = $12.49

Ex 2 Regular Pice = $49.97 (two cents LESS than example 1.
75% off price = $12.74 (twenty five cents MORE than example 1.

Pretty neat trick when both are 75% off yet the one that's two cents less at regular price is somehow twenty five cents more when both have 75% off.

This appears intentional, and it's a shitty way to do business, IMO.

It is correct though.
12.49 is 24.985% of 49.99, rounds to 25%
12.74 is 25.495% of 49.97, rounds to 25%

I know it rounds there. In fact, they landed on the precise penny that makes it round there. $12.75 wouldn't round to 75 but $12.74 does.

Now imagine a $50.00 game at 50% off. Everyone knows 50% off $50.00 is $25.00. But, using this bullshit "rounding" excuse, then a $50.00 game at 50% will be $25.25.

It's a shitty, shitty way to do business. And I would expect more from GOG. But I guess that's just me.

Also, I take issue with "correct". At 74.5, it is NOT 75. In fact, at 74.99 it is not 75. It is not 75% off until it is 75% off. Period. If it were a penny or two OVER 75% off, then it would have met the threshold of the advertised 75% off. But even at 74.99% off, it does not meet the advertisement of 75% off.

Welcome to Capitalism, may I take your grift/corruption?

But more seriously, I imagine this is a good ole fashioned Floating Point error. IE, they're incorrectly calculating a decimal point.

Why even use rounding in prices if money is digital?

Why are they rounding percentages? They should be rounding the discounted prices.

49.99 * 0,25 `= 12,4975 ===> 12.50
49,97 * 0,25 = 12,4925 ===> 12.49

I bet GOG is making millions... no, TRILLIONS, with this scam!
I want my money back! In fact, I want everyone's money back (to me)!



Ps. Thanks for the thread, I didn't realize I didn't have that particular Stronghold game yet. I presume it doesn't have a Compelete Edition which includes all the DLCs? Are they still producing more DLC for that game?

I'm guessing that GOG isn't setting the price here, the publishers are.

And I'm guessing that the discounted price is set, and then the percentages are calculated from the discounted price, not the other way around.

But I do agree, 74.525% off is not 75% off - it is false advertising. The percentages should be floored, not rounded.

GOG is still used to thinking in fixed price points such as 5.99 , 9.99 , 14.99 , 19.99 , ... , 49.99 , ... as can be seen here.
There is a base price set in some currency and all discounted prices and foreign currency prices are derived from that. Traditionally, the base price was set in US$ but that has changed since. Because for many publishers binding themselves to the US dollar would be financially unfavorable.

If you see a price point like 49.97 then it is a currency converted one. Even more rounding and bending had to be done to make those prices "fit". As a result, the final discount percentage often doesn't match anymore and values like 74% or 81% off show up.

edit:
screenshot added

In my view they've stopped caring about that thread. Most of the time the price matrix is only updated because a regular user (often me) posts in the thread after noticing the price changes for the few games that aren't regionally priced.

I didn't post in that thread to announce the price changes that occurred in early December, so there were no official announcements in the 5 months since then. Correlation or causation? Who knows...

Their habit of rounding everything up so it ends in a 9 is thankfully becoming less frequent. In one case, that resulted in build your own bundle discounts having precisely no impact on highly discounted Daedalic games. (1.19 less 5% bundle discount still costs 1.19 for example). That I believe to be the true rounding sin.

Indeed, it's logical that the actual values are what's set, and the percentages calculated according to them, just something to display to users, not factored into the actual accounting. But also true that they should be rounded down, to play it safe and not be accused of false advertising.