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 $520 to $312. Find the percentage decrease.
Answer: 40%
- Change = 520 − 312 = 208
- 208 ÷ 520 × 100 = 40%
2.A price changes from $420 to $399. Find the percentage decrease.
Answer: 5%
- Change = 420 − 399 = 21
- 21 ÷ 420 × 100 = 5%
3.A price changes from $300 to $480. Find the percentage increase.
Answer: 60%
- Change = 480 − 300 = 180
- 180 ÷ 300 × 100 = 60%
4.A price changes from $240 to $192. Find the percentage decrease.
Answer: 20%
- Change = 240 − 192 = 48
- 48 ÷ 240 × 100 = 20%
5.A price changes from $740 to $1036. Find the percentage increase.
Answer: 40%
- Change = 1036 − 740 = 296
- 296 ÷ 740 × 100 = 40%
6.A price changes from $380 to $418. Find the percentage increase.
Answer: 10%
- Change = 418 − 380 = 38
- 38 ÷ 380 × 100 = 10%
7.A price changes from $40 to $30. Find the percentage decrease.
Answer: 25%
- Change = 40 − 30 = 10
- 10 ÷ 40 × 100 = 25%
8.A price changes from $260 to $299. Find the percentage increase.
Answer: 15%
- Change = 299 − 260 = 39
- 39 ÷ 260 × 100 = 15%
9.A price changes from $660 to $726. Find the percentage increase.
Answer: 10%
- Change = 726 − 660 = 66
- 66 ÷ 660 × 100 = 10%
10.A price changes from $620 to $434. Find the percentage decrease.
Answer: 30%
- Change = 620 − 434 = 186
- 186 ÷ 620 × 100 = 30%
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