Warm Up Estimate. 1. 20% of 602 2. 133 out of 264 3. 151% of 78 4. 0.28 out of 0.95 Possible answers: 120 50% 120 30%
commission rate sales = commission commission: a fee paid to a person who makes a sale. commission rate: a percent of the selling price. commission rate sales = commission Often salespeople are paid a commission plus a regular salary.
Example 1: Finding Commission Amounts A real-estate agent is paid a monthly salary of $900 plus commission. Last month he sold one condominium for $65,000, earning a 4% commission on the sale. How much was his commission? What was his total pay last month? commission rate sales = commission 4% $65,000 = c 0.04 65,000 = c 2600 = c commission + salary = total pay $2600 + $900 = $3500
Sales tax: the tax on the sale of an item or service.
Example 2: Finding Sales Tax Amounts If the sales tax rate is 6.75%, how much tax would Adrian pay if he bought two CDs at $16.99 each and one DVD for $36.29? CD: 2 at $16.99 $33.98 DVD: 1 at $36.29 $36.29 $70.27 0.0675 70.27 = 4.743225 $4.74
Example 3: Finding the Percent of Earnings Anna earns $1500 monthly. Of that, $114.75 is withheld for Social Security and Medicare. What percent of Anna’s earnings are withheld for Social Security and Medicare? Think: What percent of $1500 is $114.75? 114.75 1500 n 100 = n 1500 = 100 114.75 1500n = 11,475 11,475 1500 n = n = 7.65 7.65%
Example 4: Finding Total Sales A furniture sales associate earned $960 in commission in May. If his commission is 12% of sales, how much were his sales in May? Think: $960 is 12% of what number? Let s = total sales 960 = 0.12 s 960 0.12 = s 8000 = s $8000
Lesson Quiz 1. Every month, Gillian makes $1600 plus an 8.9% commission on sales. If her sales last month totaled $18,400, what was her total pay? 2. The sales tax is 5.75%, and the shirt costs $20. What is the total cost of the shirt? 3. Sheridan has a yearly income of $39,650, and he is advised to invest $4500 every year. What percent of his income should he invest, to the nearest tenth of a percent? 4. If you earn a 4% commission, how much would your total sales have to be to make a commission of $115? $3237.60 $21.15 11.3% $2875