[SHOP] Displaying % Sales wrong.

Not a big deal, but I'd like to see it get fixed. probably isn't hard to change either (pardon my ignorance if I'm wrong). But in the shop. 1350 skins that are on sale will show up as "27% off" when 28% is closer to the real number.

27% of 1350 = 364 RP off. Which is 986 28% of 1350 = 378 RP off. Which is 972 29% of 1350 = 391 RP off. Which is 959

Sale price of a 1350 skin will be 975, Which is closer to 972 than either 986 and/or 959.

In case you can't look at the client right now, Here's a picture: http://imgur.com/Uz7UUzA