1. Find Percent Given a Part and a Whole Using the Percent Proportion

3. What if I want to know other parts of a percent problem?
15 is what percent of 25? 9 is 45% of what number?

4. When solving percent problems look for 3 parts:
The Part (*usually says IS before the number)
The Whole(*usually says OF before the number)
The Percent (*has a % sign behind the number)

5. Example:

7. If we set things up in a proportion, then you can find any of the 3 parts
Whole
percent
100 =

8. = 100 Part (is) Whole (of) percent 100 Examples
Hint: Do you know the part, whole or percent?
What is 5% of 180?
part (is)
whole (of)
100
Part (is)
Whole (of)
percent
100 =

9. = 100 part whole percent 100 Examples
Hint: Do you know the part, whole or percent?
$4 is what percent of $50?
part (is)
whole (of)
100
part
whole
percent
100 =

10. = 100 part whole percent 100 Examples
Hint: Do you know the part, whole or percent?
54 is 45% of what number?
part (is)
whole (of)
100
part
whole
percent
100 =

11. = 100 part whole percent 100 Examples
Hint: Do you know the part, whole or percent?
What percent of 200 is 5?
part (is)
whole (of)
100
part
whole
percent
100 =

12. Group Work % 100 700 1% of what number is 7?
𝑝𝑎𝑟𝑡 𝑤ℎ𝑜𝑙𝑒 =
700
1% of what number is 7?
2) 30 is 50% of what number? 60
3) What number is 70% of 250?
175
13 is 26% of what number? 50

13. 40
5) What percent of 90 is 36?
6) What percent of 125 is 5? 4
7) is 25% of what number? 50
8) 40% of what number is 82
205