Year 9 Percentage Increase and Decrease Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the Year 9 percentages worksheet.
Success TutoringWorksheetsAnswer sheetYear 9 · Mathematics · PercentagesYear 9 Percentage Increase and Decrease Worksheet — Level 2 — Answers
Percentage change = change ÷ original amount × 100. Always divide by the original amount.
1.A price changes from $580 to $667. Find the percentage increase.
Answer: 15%
- Change = 667 − 580 = 87
- 87 ÷ 580 × 100 = 15%
2.A price changes from $320 to $80. Find the percentage decrease.
Answer: 75%
- Change = 320 − 80 = 240
- 240 ÷ 320 × 100 = 75%
3.A price changes from $60 to $51. Find the percentage decrease.
Answer: 15%
- Change = 60 − 51 = 9
- 9 ÷ 60 × 100 = 15%
4.A price changes from $700 to $560. Find the percentage decrease.
Answer: 20%
- Change = 700 − 560 = 140
- 140 ÷ 700 × 100 = 20%
5.A price changes from $60 to $36. Find the percentage decrease.
Answer: 40%
- Change = 60 − 36 = 24
- 24 ÷ 60 × 100 = 40%
6.A price changes from $360 to $432. Find the percentage increase.
Answer: 20%
- Change = 432 − 360 = 72
- 72 ÷ 360 × 100 = 20%
7.A price changes from $320 to $288. Find the percentage decrease.
Answer: 10%
- Change = 320 − 288 = 32
- 32 ÷ 320 × 100 = 10%
8.A price changes from $320 to $368. Find the percentage increase.
Answer: 15%
- Change = 368 − 320 = 48
- 48 ÷ 320 × 100 = 15%
9.A price changes from $280 to $238. Find the percentage decrease.
Answer: 15%
- Change = 280 − 238 = 42
- 42 ÷ 280 × 100 = 15%
10.A price changes from $460 to $598. Find the percentage increase.
Answer: 30%
- Change = 598 − 460 = 138
- 138 ÷ 460 × 100 = 30%
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