It is depend in our capital. how many amount in our capital. if we have big capital then we trade with big lot and if we have small amount of capital then we use for trade a small of lot. it is true a big capital gives a big profit. while a smal capital gives small profit. because in small capital we use small lot that gives you profit according to our percentage. to jitna ho ske achi strategy k sath trade krni cahye. agr hamare pass small capital ha to koi baat ni usi hisaab se humyn order place krna cahey. koi baat ni agr hume profit zyada ni milta lekin loss se to better ha.