7th Grade Percentage Increase and Decrease Worksheet — Level 1 — Practice Set 3 — 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 3 — Answers
Percentage change = change ÷ original amount × 100. Always divide by the original amount.
1.A price changes from $120 to $180. Find the percentage increase.
Answer: 50%
- Change = 180 − 120 = 60
- 60 ÷ 120 × 100 = 50%
2.A price changes from $370 to $296. Find the percentage decrease.
Answer: 20%
- Change = 370 − 296 = 74
- 74 ÷ 370 × 100 = 20%
3.A price changes from $110 to $55. Find the percentage decrease.
Answer: 50%
- Change = 110 − 55 = 55
- 55 ÷ 110 × 100 = 50%
4.A price changes from $300 to $150. Find the percentage decrease.
Answer: 50%
- Change = 300 − 150 = 150
- 150 ÷ 300 × 100 = 50%
5.A price changes from $100 to $110. Find the percentage increase.
Answer: 10%
- Change = 110 − 100 = 10
- 10 ÷ 100 × 100 = 10%
6.A price changes from $50 to $75. Find the percentage increase.
Answer: 50%
- Change = 75 − 50 = 25
- 25 ÷ 50 × 100 = 50%
7.A price changes from $260 to $195. Find the percentage decrease.
Answer: 25%
- Change = 260 − 195 = 65
- 65 ÷ 260 × 100 = 25%
8.A price changes from $320 to $288. Find the percentage decrease.
Answer: 10%
- Change = 320 − 288 = 32
- 32 ÷ 320 × 100 = 10%
9.A price changes from $220 to $330. Find the percentage increase.
Answer: 50%
- Change = 330 − 220 = 110
- 110 ÷ 220 × 100 = 50%
10.A price changes from $250 to $275. Find the percentage increase.
Answer: 10%
- Change = 275 − 250 = 25
- 25 ÷ 250 × 100 = 10%
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