Year 8 Percentage Increase and Decrease Worksheet — Level 1 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 8 percentages worksheet.
Success TutoringWorksheetsAnswer sheetYear 8 · Mathematics · PercentagesYear 8 Percentage Increase and Decrease Worksheet — Level 1 — Practice Set 2 — Answers
Percentage change = change ÷ original amount × 100. Always divide by the original amount.
1.A price changes from $40 to $36. Find the percentage decrease.
Answer: 10%
- Change = 40 − 36 = 4
- 4 ÷ 40 × 100 = 10%
2.A price changes from $40 to $30. Find the percentage decrease.
Answer: 25%
- Change = 40 − 30 = 10
- 10 ÷ 40 × 100 = 25%
3.A price changes from $360 to $324. Find the percentage decrease.
Answer: 10%
- Change = 360 − 324 = 36
- 36 ÷ 360 × 100 = 10%
4.A price changes from $240 to $120. Find the percentage decrease.
Answer: 50%
- Change = 240 − 120 = 120
- 120 ÷ 240 × 100 = 50%
5.A price changes from $20 to $16. Find the percentage decrease.
Answer: 20%
- Change = 20 − 16 = 4
- 4 ÷ 20 × 100 = 20%
6.A price changes from $20 to $15. Find the percentage decrease.
Answer: 25%
- Change = 20 − 15 = 5
- 5 ÷ 20 × 100 = 25%
7.A price changes from $200 to $300. Find the percentage increase.
Answer: 50%
- Change = 300 − 200 = 100
- 100 ÷ 200 × 100 = 50%
8.A price changes from $40 to $44. Find the percentage increase.
Answer: 10%
- Change = 44 − 40 = 4
- 4 ÷ 40 × 100 = 10%
9.A price changes from $220 to $275. Find the percentage increase.
Answer: 25%
- Change = 275 − 220 = 55
- 55 ÷ 220 × 100 = 25%
10.A price changes from $190 to $285. Find the percentage increase.
Answer: 50%
- Change = 285 − 190 = 95
- 95 ÷ 190 × 100 = 50%
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