open.mp forum
[Pawn] Problem with percentage - Printable Version

+ open.mp forum (https://forum.open.mp)
-- Forum: SA-MP (https://forum.open.mp/forumdisplay.php?fid=3)
--- Forum: Pawn Scripting (https://forum.open.mp/forumdisplay.php?fid=10)
--- Thread: [Pawn] Problem with percentage (/showthread.php?tid=1449)

Problem with percentage - GospodinX - 2020-12-22

Hi guys



I use percentage for many things in my SA-MP server.(discounts,tax etc),but I have some problems with it.



For "small" numbers it work pretty nice.



Code:



Code:
new result = PERCENT*PRICE/100;



printf("Result: %d",result);





First test:

PERCENT: 75

PRICE: 140 000 000

Result:?19100654



Result is ok



Second test:

PERCENT: 75

PRICE: 340 000 000

Result:?-17698038



Result is wrong





Does anyone have idea how I should fix it?

RE: Problem with percentage - Pinch - 2020-12-22

Because -2??-1 is the max value a single variable can store and as soon as you can try to go beyond that value, it overflows and starts going backwards...



Try price * 0.percentage



Ex: 340 000 000 * 0.75

RE: Problem with percentage - GospodinX - 2020-12-22

(2020-12-22, 11:36 AM)Pinch Wrote: Because -2??-1 is the max value a single variable can store and as soon as you can try to go beyond that value, it overflows and starts going backwards...



Try price * 0.percentage



Ex: 340 000 000 * 0.75



Hm ?



[Image: Fcsjxv6.png]

RE: Problem with percentage - Pinch - 2020-12-23

My bad, price - (price * 0.75)