a shopkeeper sold an article for rs 2564.36 . approximately what was his profit percent if the cost price of the article was rs 2300
"explanation : gain % = ( 264.36 * 100 / 2300 ) = 11.49 % = 12 % approx option e"
floor(multiply(const_100, divide(subtract(2564.36, 2300), 2300)))