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 $300 to $75. Find the percentage decrease.
Answer: 75%
- Change = 300 − 75 = 225
- 225 ÷ 300 × 100 = 75%
2.A price changes from $360 to $468. Find the percentage increase.
Answer: 30%
- Change = 468 − 360 = 108
- 108 ÷ 360 × 100 = 30%
3.A price changes from $600 to $540. Find the percentage decrease.
Answer: 10%
- Change = 600 − 540 = 60
- 60 ÷ 600 × 100 = 10%
4.A price changes from $100 to $25. Find the percentage decrease.
Answer: 75%
- Change = 100 − 25 = 75
- 75 ÷ 100 × 100 = 75%
5.A price changes from $720 to $540. Find the percentage decrease.
Answer: 25%
- Change = 720 − 540 = 180
- 180 ÷ 720 × 100 = 25%
6.A price changes from $760 to $798. Find the percentage increase.
Answer: 5%
- Change = 798 − 760 = 38
- 38 ÷ 760 × 100 = 5%
7.A price changes from $300 to $375. Find the percentage increase.
Answer: 25%
- Change = 375 − 300 = 75
- 75 ÷ 300 × 100 = 25%
8.A price changes from $520 to $832. Find the percentage increase.
Answer: 60%
- Change = 832 − 520 = 312
- 312 ÷ 520 × 100 = 60%
9.A price changes from $560 to $140. Find the percentage decrease.
Answer: 75%
- Change = 560 − 140 = 420
- 420 ÷ 560 × 100 = 75%
10.A price changes from $380 to $266. Find the percentage decrease.
Answer: 30%
- Change = 380 − 266 = 114
- 114 ÷ 380 × 100 = 30%
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