15.4 Chain Discounts Objective: To understand how to compute the final price after a chain of discounts. First Discount = List Price ∗ 1st Discount% First Net Price = List Price − First Discount Second Discount = First Net ∗ 2nd Discount% Final Net Price = First Net −Second Discount Final Net Price = List Price ∗ (100-­‐1st Discount)%∗(100-­‐2nd Discount)% Ex: List Price: $230.37 Chain Discount: 30 % less 10% a. Find the first net price. First Discount = 230.37 ∗ 30% = 69.11 First Net Price = 230.37− 69.11 = $161.26 b. Find the final net price. Second Discount = 161.26 ∗ 10% = 16.13 Final Net Price = 161.26 −16.13 = $145.13 Ex: List Price: $32.78 Chain Discount: 20 /15 (20% less 15%) Final Net Price = 32.78 ∗ (100-­‐20)%∗(100-­‐15)% = $22.29 Hw # 4 Pg 496 # 1,2,5-­‐10