Worked example
A quantity increases from 50 to 60. What is the percent increase?
Answer & why
Answer: 20
The increase is 10. Divide by the original 50, then multiply by 100: 20%.
Grade 7 · Math
Find a percent increase
Express an increase relative to the original amount.
8 authored questions + worked example
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All questions
All 8 authored questions for this skill.
Question 1
A quantity increases from 40 to 50. What is the percent increase?
- 25
- 26
- 24
- 27
A hint
Use the original amount as the denominator, not the new amount.
Answer & why
Answer: 25
The increase is 10. Divide by the original 40, then multiply by 100: 25%.
Question 2
A quantity increases from 160 to 200. What is the percent increase?
- 26
- 24
- 25
- 27
A hint
Use the original amount as the denominator, not the new amount.
Answer & why
Answer: 25
The increase is 40. Divide by the original 160, then multiply by 100: 25%.
Question 3
A quantity increases from 50 to 60. What is the percent increase?
- 20
- 22
- 19
- 21
A hint
Use the original amount as the denominator, not the new amount.
Answer & why
Answer: 20
The increase is 10. Divide by the original 50, then multiply by 100: 20%.
Question 4
A quantity increases from 80 to 100. What is the percent increase?
- 26
- 25
- 24
- 27
A hint
Use the original amount as the denominator, not the new amount.
Answer & why
Answer: 25
The increase is 20. Divide by the original 80, then multiply by 100: 25%.
Question 5
A quantity increases from 100 to 115. What is the percent increase?
- 15
- 14
- 16
- 17
A hint
Use the original amount as the denominator, not the new amount.
Answer & why
Answer: 15
The increase is 15. Divide by the original 100, then multiply by 100: 15%.
Question 6
A quantity increases from 200 to 250. What is the percent increase?
- 25
- 26
- 24
- 27
A hint
Use the original amount as the denominator, not the new amount.
Answer & why
Answer: 25
The increase is 50. Divide by the original 200, then multiply by 100: 25%.
Question 7
A quantity increases from 120 to 150. What is the percent increase?
- 24
- 26
- 25
- 27
A hint
Use the original amount as the denominator, not the new amount.
Answer & why
Answer: 25
The increase is 30. Divide by the original 120, then multiply by 100: 25%.
Question 8
A quantity increases from 60 to 90. What is the percent increase?
- 50
- 52
- 51
- 49
A hint
Use the original amount as the denominator, not the new amount.
Answer & why
Answer: 50
The increase is 30. Divide by the original 60, then multiply by 100: 50%.