I wonder if it make any sense, if MT4 signal setting, should provide option for fore rounding to Integer.
for ex. if copy ratio is 3.28, instead of using rate 320% (3.2 : 1), I like it to be exactly 300% (3 : 1)
This will help to preserve risk management volume of some signal provider more accurate.
I have no experience in using signals, in code one can use to get a full interest (commercially rounded):