7th Grade Percentage Increase and Decrease Worksheet — Level 1 — Practice Set 4 — Answers
Answer sheet with worked solutions for the 7th Grade percentages worksheet.
Success TutoringWorksheetsAnswer sheet7th Grade · Mathematics · Percentages7th Grade Percentage Increase and Decrease Worksheet — Level 1 — Practice Set 4 — Answers
Percentage change = change ÷ original amount × 100. Always divide by the original amount.
1.A price changes from $70 to $105. Find the percentage increase.
Answer: 50%
- Change = 105 − 70 = 35
- 35 ÷ 70 × 100 = 50%
2.A price changes from $300 to $375. Find the percentage increase.
Answer: 25%
- Change = 375 − 300 = 75
- 75 ÷ 300 × 100 = 25%
3.A price changes from $170 to $153. Find the percentage decrease.
Answer: 10%
- Change = 170 − 153 = 17
- 17 ÷ 170 × 100 = 10%
4.A price changes from $280 to $224. Find the percentage decrease.
Answer: 20%
- Change = 280 − 224 = 56
- 56 ÷ 280 × 100 = 20%
5.A price changes from $90 to $72. Find the percentage decrease.
Answer: 20%
- Change = 90 − 72 = 18
- 18 ÷ 90 × 100 = 20%
6.A price changes from $330 to $495. Find the percentage increase.
Answer: 50%
- Change = 495 − 330 = 165
- 165 ÷ 330 × 100 = 50%
7.A price changes from $330 to $297. Find the percentage decrease.
Answer: 10%
- Change = 330 − 297 = 33
- 33 ÷ 330 × 100 = 10%
8.A price changes from $180 to $198. Find the percentage increase.
Answer: 10%
- Change = 198 − 180 = 18
- 18 ÷ 180 × 100 = 10%
9.A price changes from $60 to $75. Find the percentage increase.
Answer: 25%
- Change = 75 − 60 = 15
- 15 ÷ 60 × 100 = 25%
10.A price changes from $330 to $363. Find the percentage increase.
Answer: 10%
- Change = 363 − 330 = 33
- 33 ÷ 330 × 100 = 10%
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