how to find the original price and rate of discount
Answer (1)
1. Finding Original Price If you know the discounted price and the rate of discount, use this formula:Original Price = Discounted Price ÷ (1 - Discount Rate)(Make sure the rate is in decimal. For example, 20% = 0.20)Example:Discounted Price = P80Discount Rate = 20% = 0.20Original Price = 80 ÷ (1 - 0.20) = 80 ÷ 0.80 = P1002. Finding Rate of Discount If you know the original price and the discounted price, use this:Rate of Discount = (Original Price - Discounted Price) ÷ Original Price × 100%Example:Original Price = P100Discounted Price = P80Rate = (100 - 80) ÷ 100 × 100% = 20%
