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 $220 to $385. Find the percentage increase.
Answer: 75%
- Change = 385 − 220 = 165
- 165 ÷ 220 × 100 = 75%
2.A price changes from $460 to $598. Find the percentage increase.
Answer: 30%
- Change = 598 − 460 = 138
- 138 ÷ 460 × 100 = 30%
3.A price changes from $400 to $380. Find the percentage decrease.
Answer: 5%
- Change = 400 − 380 = 20
- 20 ÷ 400 × 100 = 5%
4.A price changes from $740 to $962. Find the percentage increase.
Answer: 30%
- Change = 962 − 740 = 222
- 222 ÷ 740 × 100 = 30%
5.A price changes from $540 to $216. Find the percentage decrease.
Answer: 60%
- Change = 540 − 216 = 324
- 324 ÷ 540 × 100 = 60%
6.A price changes from $80 to $88. Find the percentage increase.
Answer: 10%
- Change = 88 − 80 = 8
- 8 ÷ 80 × 100 = 10%
7.A price changes from $460 to $368. Find the percentage decrease.
Answer: 20%
- Change = 460 − 368 = 92
- 92 ÷ 460 × 100 = 20%
8.A price changes from $120 to $150. Find the percentage increase.
Answer: 25%
- Change = 150 − 120 = 30
- 30 ÷ 120 × 100 = 25%
9.A price changes from $640 to $576. Find the percentage decrease.
Answer: 10%
- Change = 640 − 576 = 64
- 64 ÷ 640 × 100 = 10%
10.A price changes from $600 to $420. Find the percentage decrease.
Answer: 30%
- Change = 600 − 420 = 180
- 180 ÷ 600 × 100 = 30%
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