Year 10 Percentage Increase and Decrease Worksheet — Level 2 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 10 percentages worksheet.
Success TutoringWorksheetsAnswer sheetYear 10 · Mathematics · PercentagesYear 10 Percentage Increase and Decrease Worksheet — Level 2 — Practice Set 2 — Answers
Percentage change = change ÷ original amount × 100. Always divide by the original amount.
1.A price changes from $320 to $352. Find the percentage increase.
Answer: 10%
- Change = 352 − 320 = 32
- 32 ÷ 320 × 100 = 10%
2.A price changes from $580 to $812. Find the percentage increase.
Answer: 40%
- Change = 812 − 580 = 232
- 232 ÷ 580 × 100 = 40%
3.A price changes from $740 to $814. Find the percentage increase.
Answer: 10%
- Change = 814 − 740 = 74
- 74 ÷ 740 × 100 = 10%
4.A price changes from $440 to $616. Find the percentage increase.
Answer: 40%
- Change = 616 − 440 = 176
- 176 ÷ 440 × 100 = 40%
5.A price changes from $420 to $336. Find the percentage decrease.
Answer: 20%
- Change = 420 − 336 = 84
- 84 ÷ 420 × 100 = 20%
6.A price changes from $400 to $160. Find the percentage decrease.
Answer: 60%
- Change = 400 − 160 = 240
- 240 ÷ 400 × 100 = 60%
7.A price changes from $480 to $768. Find the percentage increase.
Answer: 60%
- Change = 768 − 480 = 288
- 288 ÷ 480 × 100 = 60%
8.A price changes from $440 to $308. Find the percentage decrease.
Answer: 30%
- Change = 440 − 308 = 132
- 132 ÷ 440 × 100 = 30%
9.A price changes from $460 to $736. Find the percentage increase.
Answer: 60%
- Change = 736 − 460 = 276
- 276 ÷ 460 × 100 = 60%
10.A price changes from $120 to $168. Find the percentage increase.
Answer: 40%
- Change = 168 − 120 = 48
- 48 ÷ 120 × 100 = 40%
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