1. Write the percent formula. percent x whole = part Exercise

2. What is 24% of 250? 60 Exercise

3. A merchant buys an item for $50 and sells it for $60. What is his markup rate? 20% Exercise

4. A merchant uses a markup rate of 12%. If he sells an item for $28, what was his cost? $25 Exercise

5. If a 5” x 7” photo is enlarged to 120%, what will the new dimensions be? 6” x 8.4” Exercise

6. Commission – percent of a sale that is the salesperson’s salary

7. Earnings – dollars of a sale that are the salesperson’s salary

8. Find the earnings if the commission is 7% and the amount of sales is $3,750. The earnings on the sales are $262.50. earnings = commission × sales = 0.07(3,750) = 262.50 Example 1

9. Find the commission if $3,000 in sales earns a salesperson $270. The commission is 9%. commission × sales = earnings 3,000c = 270 3,000 c = 0.09 Example 2

10. Miss Kay receives a 6% commission for selling houses. If she earned $8,340 for the sale of a house, how much did the house sell for? The house sold for $139,000. commission × sales = earnings 0.06s = 8,340 0.06 s = 139,000 Example 3

11. Find the earnings if a person gets 6% commission on sales of $5,500. $330 Example

12. Find the commission if a salesperson gets paid $500 on sales of $4,000. 12.5% Example

13. Find the sales if the commission is 8% and a salesperson earned $400. $5,000 Example

14. If a car salesperson gets 40% of the profit, how much did she earn if she sold a car that cost the dealership $21,300 for $25,500? $1,680 Example

15. Tip – income paid for a personal service

16. tip = percent × total bill

17. How much of a tip should you leave at a restaurant if your bill is $34.75 and you want to leave a 15% tip? Round to the nearest nickel. ≈ $5.20 tip = percent x total bill = 0.15(34.75) = 5.2125 Example 4

18. A hairdresser gave a $55 perm and received a $10 tip. What percent did she receive? Round to the nearest percent. The hairdresser received about an 18% tip. percent × total bill = tip 55p = 10 55 p = 0.18 ≈ 0.18 Example 5

19. What percent did a waiter receive if he got a $5 tip on a $18.50 meal (to nearest percent)? 27% Example

20. How much, assuming a 15% rate, should someone tip a pizza delivery boy on four pizzas costing a total of $30? $4.50 Example

21. How much should someone tip a waitress on a meal of $42.50, assuming the tip is 15% (to the nearest quarter)? $6.50 Example

22. How much per hour can a barber make if he is paid a 25% commission and can do four haircuts in an hour? Haircuts cost $15 and customers leave a 15% tip. $24 Example

23. What is the actual cost of a $10 meal if you assume tax at 8% and a tip of 15% paid on the total price of the meal (which includes tax)? $12.42 Example

24. If a waitress gets $3/hr. and hopes to get 15% tips, how much can she make in a week? She works 4 hr. for lunch and 4 hr. for dinner for 6 days. She can expect about 50 customers for lunch, with the average cost of lunch being $7.50, and about 20 customers for dinner, with the average cost being $35. $1,111.50 Example

25. Percent equation percentxwhole=part Discount equation x= Markup equation x= Commission equation x= Tip equationx=