Question

an item goes on sale for 20% OFF AND THEN after a few days later, another 30% off what is the effective discount from the original price? I have no idea how to do this

Answer 1

after all the days the item is 50% off

Answer 2

Let's say an item is $100 and is 20% off. The new price is $80. An additional discount of 30% on top of that makes the total price $56. Therefore, as i see it the effective discount from the original price should be 44% . It is based on compounded discounts. Here is the formula -- > Net price = List price (1 - rate of first discount)(1 - rate of next discount)