Formula for profit and loss % -
S.P. = M.P.( 100 - % ) / 100
Example-
A rice cooker price at Rs '624' is sold at a discount of '33%' .Find the selling price of the cooker ?
Putting the value in formula-
S.P. = M.P.( 100 - % ) / 100
S.P. = 624 ( 100 - 33) / 100
S.P. = 624 * 67 / 100
S.P. = 41808 / 100
S.P. = 418.08
Selling price of the cooker Rs. 418.08.