(a) 30% Gain (b) 25% Gain (c) 30% Loss (d) 25% Loss
Since selling price is more than cost price, so it's a gain case. To find the gain percentage the formula used is :- ((S.P - Ç.P)/Ç.P)*100 Where S.P =Selling Price Ç.P. =Cost Price As it's a gain case (or S.P>C.P) therefore numerator is S.P - C.P. Putting values:- ((500-400)/400)*100 ((100)/400)*100) (100/4) 25% gain.