Year 7 Percentage Increase and Decrease Worksheet — Level 1 — Practice Set 4 — 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 — Practice Set 4 — Answers
Percentage change = change ÷ original amount × 100. Always divide by the original amount.
1.A price changes from $260 to $390. Find the percentage increase.
Answer: 50%
- Change = 390 − 260 = 130
- 130 ÷ 260 × 100 = 50%
2.A price changes from $240 to $300. Find the percentage increase.
Answer: 25%
- Change = 300 − 240 = 60
- 60 ÷ 240 × 100 = 25%
3.A price changes from $160 to $200. Find the percentage increase.
Answer: 25%
- Change = 200 − 160 = 40
- 40 ÷ 160 × 100 = 25%
4.A price changes from $20 to $15. Find the percentage decrease.
Answer: 25%
- Change = 20 − 15 = 5
- 5 ÷ 20 × 100 = 25%
5.A price changes from $80 to $60. Find the percentage decrease.
Answer: 25%
- Change = 80 − 60 = 20
- 20 ÷ 80 × 100 = 25%
6.A price changes from $60 to $54. Find the percentage decrease.
Answer: 10%
- Change = 60 − 54 = 6
- 6 ÷ 60 × 100 = 10%
7.A price changes from $50 to $75. Find the percentage increase.
Answer: 50%
- Change = 75 − 50 = 25
- 25 ÷ 50 × 100 = 50%
8.A price changes from $270 to $297. Find the percentage increase.
Answer: 10%
- Change = 297 − 270 = 27
- 27 ÷ 270 × 100 = 10%
9.A price changes from $90 to $45. Find the percentage decrease.
Answer: 50%
- Change = 90 − 45 = 45
- 45 ÷ 90 × 100 = 50%
10.A price changes from $80 to $100. Find the percentage increase.
Answer: 25%
- Change = 100 − 80 = 20
- 20 ÷ 80 × 100 = 25%
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