a sorceress in diablo 2 could get 90% physical damage reduction with items and a shield. If the sorceress then got energy shield skill higher, it would go to 95%.
That may seem as just 5% percentage increase, but in fact going from 90% damage reduction to 95% damage reduction, means she just got an extra 50% statistical damage reduction, cause she HALVED the 10% damage she takes after increasing damage reduction from 90% to 95%..
This is why stacking bonuses is so god**** powerful in mmorpg and eu4. The more you -xx% you stack, the powerful each extra bonus gets.
This leads to the dreadful topic of comparing additive bonuses in eu4 versus multiplicative, which I really won't delve into.
Point being,
@ChildeR is right. You can't compare sales reduction amount in bare coin to precentage amount you see on banners and in shops. Its the oldest trick in the book to fool customers.
if a loaf of bread costs 1 dollar, and if you get 75% reduction, you pay 0,25 dollar. If the next shop offers -66% reduction, you pay 0,33 dollar.
So how much are you paying less? 9% percentage points is the difference in percentage points , but you actually pay more then 30% total eventual price in the second shop, after the reductions.
But HEY, they *look* more stylish, and they have this nice girl in shop, and customers pay 30% more. Why do you think some shops offer permanent -xx% sale offers? Because the customer has no clue of the base price, and they can set base price at whatever they want. Some shops even sell a product at base price 100 dollar before sales, and then offer -50% sales reduction on same product... BUT THEY INCREASED BASE PRICE TO 200 dollar right before the sales! And customer thinks he gets good deal.
Completely off topic, and my math likely failed somewhere, but the difference between 75% off and 66% can amount to silly amounts of cash, if the BASE price of the product is silly high. Funny fact is, that almost NOONE seems to care what original price for a product is in a shop, until they added rules for shops to LIST that price, so customers could compare.
-75% to base price 1 dollar for a leaf of bread is nice, but -66% to base price of 1,5 dollar on exact SAME product is well, a really bad deal.
Point being, if paradox LOWERED its base price for EU4 compared to launch period, then -66% to that base price might actually mean you pay LESS base price then -75% to the price they once had AT LAUNCH until they lowered it...due to eu4 being an 'old' game.
Err, sorry for this very nerdy post.
Noone ever said statistical math was easy... God I hated the math lessons for this.
advice to
@Issac1709 compare what you end up paying in the different offers, after all costs, and don't look at the reduction % amounts.