Profit and loss - calculations on gain percentage
Cost Price : The price at which an item is purchased.
Selling Price : The price at which an item is sold.
Profit or Gain : If S.P is greater than C.P then seller is said to have a profit.
Loss : If S.P is less than C.P then seller is said to have incurred a loss.
Gain % : Is the percentage of profit or gain seller receives after selling a product.
Furmulae Used
Gain = S.P - C.P
Gain % =(Gain x 100) / C.P
S.P = ((100+Gain %) x C.P) / 100
C.P = (100 x S.P) / (100 + Gain %)