a shopkeeper sold an article for rs 2591.36 . approximately what was his profit percent if the cost price of the article was rs 2400
"explanation : gain % = ( 191.36 * 100 / 2400 ) = 7.97 % = 8 % approx option d"
floor(multiply(const_100, divide(subtract(2591.36, 2400), 2400)))