1. Using the percent proportion
𝒊𝒔 𝒐𝒇 = % 𝟏𝟎𝟎

2. 55% of 180 is what number?
𝑛 180 =
𝑛=99

3. What is 40% of 64?
𝑛 64 =
𝑛=25.6

4. What percent of 20 is 14?
14 20 = 𝑛 100
𝑛=70
70%

5. 45 is 60% of what number?
45 𝑛 =
𝑛=75

6. What is 25% of 80?
𝑛 80 =
𝑛=20

7. What percent of 25 is 15?
15 25 = 𝑛 100
𝑛=60
60%

8. 45% of what number is 90?
90 𝑛 =
𝑛=200

9. 25% of what number is 30?
30 𝑛 =
𝑛=120

10. 4 is what percent of 20?
4 20 = 𝑛 100
𝑛=20
20%

11. 34 is 20% of what number?
34 𝑛 =
𝑛=170

12. 12 is what percent of 30?
12 30 = 𝑛 100
𝑛=40
40%

13. 15% of 60 is what number?
𝑛 60 =
𝑛=9

14. A store is selling t-shirts that cost $12 for 20% off
A store is selling t-shirts that cost $12 for 20% off. What the discount?
𝑛 12 =
𝑛=2.4
The discount is $2.40

15. Demi got 15 out of 25 questions correct on her test
Demi got 15 out of 25 questions correct on her test. What percent is this?
15 25 = 𝑛 100
𝑛=60
60%