1. Then/Now You have already solved real-world problems using the percent proportions. (Lesson 7–3) Solve real-world problems involving markup and discount.

2. Vocabulary markup selling price discount

3. Example 4 Find the Sale Price BASEBALL MITT CR Sporting Goods is having a sale. A baseball mitt has an original price of $89. It is on sale for 25% off the original price. Find the sale price of the baseball mitt. Method 1 Find the amount of the discount. The whole is $89. The percent is 25. You need to find the amount of the discount, or the part. Subtract the discount from the cost. So, $89 – $22.25 = $66.75.

4. Example 4 Find the Sale Price Method 2Find the total percent first. Find 100% – 25% or 75% of the price. Let x represent the sale price. Answer: Using either method, the sale price is $66.75.

5. A.A B.B C.C D.D Example 4 A.$11.20 B.$20.80 C.$27.00 D.$43.20 A store is having a 35% off sale. What is the sale price of a shirt normally costing $32?

6. Example 3 Find the Selling Price Find the selling price if a store pays $68 for a portable DVD player, and the markup is 35%. Method 1 Find the amount of markup first. The whole is $68. The percent is 35. You need to find the amount of the markup, or the part. Then add the markup to the cost. So, $68 + $23.80 = $91.80.

7. Example 3 Find the Selling Price Method 2Find the total percent first. Find 100% + 35% or 135% of the price. Answer: Using either method, the selling price is $91.80

8. A.A B.B C.C D.D Example 3 A.$28.80 B.$48.40 C.$67.20 D.$88.00 The markup on a pair of shoes is 40%. If the store paid $48 for a pair of shoes, what is the selling price?