Finding a percentage of a total amount without a calculator: Sales
tax, commission, discount: Worksheet 7.1
Name ……………………………… Date ……………………………… Score …………………………………
1. The sales tax on a $1080 computer is $64.80. What is the rate of
sales tax?
2. The price of a car is $25,990. If the sales tax rate is 6.5%, then how
much sales tax is being charged?
3. If the sales tax rate is 7.25%, then how much sales tax would you pay for
a $36 shirt?
4. At an electronics store, a 42-inch TV sells for $1250 at a 10% discount
and 6.5% sales tax. What is the final cost?
5. If your meal costs $75, and sales tax is 6.5% and if you tip the waiter
15%, how much would you pay?
6. If your phone bill was $69.80 and there is a 2.5% discount on prompt
payment, how much will you pay if you paid in time?
7. At a store, a $48 dress is marked down 20%. What is the discount? What
is the sale price of the dress?
8. Johnny is a salesman and earns a base salary of $325 per week plus 8%
commission on sales. What was Johnny’s weekly salary if his total sales
for the week were $4500?
9. In a store, a $5 bag of candy marked down 40%. What is the discount?
What is the sale price of the bag of candy?
10. In a store, a shirt that sells for $15 is marked “10% off.” What is the
discount? What is the sale price of the shirt?
Solutions: Worksheet 7.1
1. 6%
2. $1689.35
3. $2.61
4. $1198.13
5. $91.88
6. $68.05
7. $9.60; $38.40
8. $685
9. $2; $3
10. $1.50; $13.50