Exercise Write the percent formula percent x whole

Exercise Write the percent formula. percent x whole = part

Exercise What is 24% of 250? 60

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

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

Exercise If a 5” x 7” photo is enlarged to 120%, what will the new dimensions be? 6” x 8. 4”

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

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

Example 1 Find the earnings if the commission is 7% and the amount of sales is $3, 750. earnings = commission × sales = 0. 07(3, 750) = 262. 50 The earnings on the sales are $262. 50.

Example 2 Find the commission if $3, 000 in sales earns a salesperson $270. commission × sales = earnings 3, 000 c = 270 3, 000 c = 0. 09 The commission is 9%.

Example 3 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? commission × sales = earnings 0. 06 s = 8, 340 s = 139, 000 0. 06 The house sold for $139, 000.

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

Example Find the commission if a salesperson gets paid $500 on sales of $4, 000. 12. 5%

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

Example 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

Tip – income paid for a personal service

tip = percent × total bill

Example 4 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. tip = percent x total bill = 0. 15(34. 75) = 5. 2125 ≈ $5. 20

Example 5 A hairdresser gave a $55 perm and received a $10 tip. What percent did she receive? Round to the nearest percent × total bill = tip 55 p = 10 p = 0. 18 ≈ 0. 18 55 55 The hairdresser received about an 18% tip.

Example What percent did a waiter receive if he got a $5 tip on a $18. 50 meal (to nearest percent)? 27%

Example How much, assuming a 15% rate, should someone tip a pizza delivery boy on four pizzas costing a total of $30? $4. 50

Example 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 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 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 $12. 42 includes tax)?

Example 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

Percent equation percent x whole = Discount equation x = Markup equation x = Commission equation x = Tip equation x = part