Year 10 Percentage Increase and Decrease Worksheet — Level 2 — Practice Set 3 — 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 3 — Answers
Percentage change = change ÷ original amount × 100. Always divide by the original amount.
1.A price changes from $60 to $24. Find the percentage decrease.
Answer: 60%
- Change = 60 − 24 = 36
- 36 ÷ 60 × 100 = 60%
2.A price changes from $180 to $144. Find the percentage decrease.
Answer: 20%
- Change = 180 − 144 = 36
- 36 ÷ 180 × 100 = 20%
3.A price changes from $440 to $264. Find the percentage decrease.
Answer: 40%
- Change = 440 − 264 = 176
- 176 ÷ 440 × 100 = 40%
4.A price changes from $300 to $240. Find the percentage decrease.
Answer: 20%
- Change = 300 − 240 = 60
- 60 ÷ 300 × 100 = 20%
5.A price changes from $480 to $336. Find the percentage decrease.
Answer: 30%
- Change = 480 − 336 = 144
- 144 ÷ 480 × 100 = 30%
6.A price changes from $320 to $256. Find the percentage decrease.
Answer: 20%
- Change = 320 − 256 = 64
- 64 ÷ 320 × 100 = 20%
7.A price changes from $520 to $676. Find the percentage increase.
Answer: 30%
- Change = 676 − 520 = 156
- 156 ÷ 520 × 100 = 30%
8.A price changes from $240 to $60. Find the percentage decrease.
Answer: 75%
- Change = 240 − 60 = 180
- 180 ÷ 240 × 100 = 75%
9.A price changes from $800 to $640. Find the percentage decrease.
Answer: 20%
- Change = 800 − 640 = 160
- 160 ÷ 800 × 100 = 20%
10.A price changes from $280 to $112. Find the percentage decrease.
Answer: 60%
- Change = 280 − 112 = 168
- 168 ÷ 280 × 100 = 60%
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