Drop Bonus and exp rates

[aakarsh98 57]

if (pMob[arg2].DropBonus > 0 && pMob[arg2].DropBonus < 100)
    LOCAL_203 -= (LOCAL_203 * pMob[arg2].DropBonus / 100);

 

I came across this part of the code that deals with drop bonus, interestingly the more bonus items you equip the lower the bonus rates become, for example i use a 40% fairy, the drop rate becomes 60 from 100 instead of 140 from 100.

can anyone explain how this is working the way it is.

[987987987 719]

Vou supor que LOCAL_203 seja a taxa bônus atual, que será 100 e equipou uma fada +60% .

100  -= ( 100 * 60 / 100 )
100  -= ( 100 * 60 / 100 )
100  -= ( 60 )
100 ( valor atual menos ) 60
Será reduzido em 60, não aumentado, pois está "-=", não seria "+="?