Year 7 Percentage Increase and Decrease Worksheet — Level 1 — Answers
Answer sheet with worked solutions for the Year 7 percentages worksheet.
Success TutoringWorksheetsAnswer sheetYear 7 · Mathematics · PercentagesYear 7 Percentage Increase and Decrease Worksheet — Level 1 — Answers
Percentage change = change ÷ original amount × 100. Always divide by the original amount.
1.A price changes from $340 to $408. Find the percentage increase.
Answer: 20%
- Change = 408 − 340 = 68
- 68 ÷ 340 × 100 = 20%
2.A price changes from $300 to $240. Find the percentage decrease.
Answer: 20%
- Change = 300 − 240 = 60
- 60 ÷ 300 × 100 = 20%
3.A price changes from $180 to $135. Find the percentage decrease.
Answer: 25%
- Change = 180 − 135 = 45
- 45 ÷ 180 × 100 = 25%
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 $240 to $360. Find the percentage increase.
Answer: 50%
- Change = 360 − 240 = 120
- 120 ÷ 240 × 100 = 50%
6.A price changes from $290 to $261. Find the percentage decrease.
Answer: 10%
- Change = 290 − 261 = 29
- 29 ÷ 290 × 100 = 10%
7.A price changes from $280 to $210. Find the percentage decrease.
Answer: 25%
- Change = 280 − 210 = 70
- 70 ÷ 280 × 100 = 25%
8.A price changes from $110 to $55. Find the percentage decrease.
Answer: 50%
- Change = 110 − 55 = 55
- 55 ÷ 110 × 100 = 50%
9.A price changes from $110 to $99. Find the percentage decrease.
Answer: 10%
- Change = 110 − 99 = 11
- 11 ÷ 110 × 100 = 10%
10.A price changes from $400 to $200. Find the percentage decrease.
Answer: 50%
- Change = 400 − 200 = 200
- 200 ÷ 400 × 100 = 50%
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