[10,000,000 - (10,000,000 x .10)] - (10,000,000 x .15) ≠ 10,000,000 - (10,000,000 x .25)

What does this equation (Or in-equation, if you will) represent?

Answer correctly and win 5 million pure tu!

FAQ 

Yes, this contest is totally random. 

Yes, there is a correct answer.

Yes, it is rescreatu related.

No, you cannot have a hint. I will decide when to give out hints. ;D

If nobody with any ease after a long period of time, I may increase the prize, but don't avoid answering in a hope that the prize gets increased, because the longer you wait, the more chance someone will answer correctly before you! 

GO! 

(I may be adding more Rescreatu Math Puzzles to this page as I think of them, so keep on the lookout.) 

If you're a merchant having a 10% discount on an item and you have a 15% discount card, it's not the same having 10% off the price of an item worth 10m tu and then 15% off that new number than having a 25% discount in total.

that is, the 15% of the 10% of 10m is not the same as the 25% of 10m :3

that was hard, you gave me a headache D:

Wow O_O You're good. First guess too xD I'll need to think of a harder conundrum next time x3

Sending your prize!~ 

well it was hard xD really hard >0<;; I still don't know how I managed to get it xP *fails*

thank you c':