Year 10 Percentage Increase and Decrease Worksheet — Level 2 — Practice Set 4 — 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 4 — Answers
Percentage change = change ÷ original amount × 100. Always divide by the original amount.
1.A price changes from $460 to $805. Find the percentage increase.
Answer: 75%
- Change = 805 − 460 = 345
- 345 ÷ 460 × 100 = 75%
2.A price changes from $780 to $1365. Find the percentage increase.
Answer: 75%
- Change = 1365 − 780 = 585
- 585 ÷ 780 × 100 = 75%
3.A price changes from $340 to $255. Find the percentage decrease.
Answer: 25%
- Change = 340 − 255 = 85
- 85 ÷ 340 × 100 = 25%
4.A price changes from $80 to $68. Find the percentage decrease.
Answer: 15%
- Change = 80 − 68 = 12
- 12 ÷ 80 × 100 = 15%
5.A price changes from $780 to $468. Find the percentage decrease.
Answer: 40%
- Change = 780 − 468 = 312
- 312 ÷ 780 × 100 = 40%
6.A price changes from $700 to $770. Find the percentage increase.
Answer: 10%
- Change = 770 − 700 = 70
- 70 ÷ 700 × 100 = 10%
7.A price changes from $700 to $420. Find the percentage decrease.
Answer: 40%
- Change = 700 − 420 = 280
- 280 ÷ 700 × 100 = 40%
8.A price changes from $600 to $960. Find the percentage increase.
Answer: 60%
- Change = 960 − 600 = 360
- 360 ÷ 600 × 100 = 60%
9.A price changes from $460 to $529. Find the percentage increase.
Answer: 15%
- Change = 529 − 460 = 69
- 69 ÷ 460 × 100 = 15%
10.A price changes from $160 to $224. Find the percentage increase.
Answer: 40%
- Change = 224 − 160 = 64
- 64 ÷ 160 × 100 = 40%
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