Problem: a computer store offers employees a 30 % discount off the retail price . if the store purchased a computer from the manufacturer for $ 900 dollars and marked up the price 30 % to the final retail price , how much would an employee save if he purchased the computer at the employee discount ( 30 % off retail price ) as opposed to the final retail price .
Rationale: "cost price = 900 profit = 30 % = 30 % of 900 = 270 selling price = cp + profit sp = 1170 a discount of 30 % to employees means 30 % off on 1170 so 30 % of 1170 = 351 ans a"
annotated_formula: divide(add(divide(multiply(900, 30), const_100), 900), multiply(divide(900, const_100), const_2))