Year 8 Percentage Increase and Decrease Worksheet — Level 1 — 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 — Answers
Percentage change = change ÷ original amount × 100. Always divide by the original amount.
1.A price changes from $380 to $304. Find the percentage decrease.
Answer: 20%
- Change = 380 − 304 = 76
- 76 ÷ 380 × 100 = 20%
2.A price changes from $70 to $105. Find the percentage increase.
Answer: 50%
- Change = 105 − 70 = 35
- 35 ÷ 70 × 100 = 50%
3.A price changes from $330 to $165. Find the percentage decrease.
Answer: 50%
- Change = 330 − 165 = 165
- 165 ÷ 330 × 100 = 50%
4.A price changes from $250 to $225. Find the percentage decrease.
Answer: 10%
- Change = 250 − 225 = 25
- 25 ÷ 250 × 100 = 10%
5.A price changes from $70 to $77. Find the percentage increase.
Answer: 10%
- Change = 77 − 70 = 7
- 7 ÷ 70 × 100 = 10%
6.A price changes from $200 to $100. Find the percentage decrease.
Answer: 50%
- Change = 200 − 100 = 100
- 100 ÷ 200 × 100 = 50%
7.A price changes from $120 to $96. Find the percentage decrease.
Answer: 20%
- Change = 120 − 96 = 24
- 24 ÷ 120 × 100 = 20%
8.A price changes from $400 to $300. Find the percentage decrease.
Answer: 25%
- Change = 400 − 300 = 100
- 100 ÷ 400 × 100 = 25%
9.A price changes from $110 to $132. Find the percentage increase.
Answer: 20%
- Change = 132 − 110 = 22
- 22 ÷ 110 × 100 = 20%
10.A price changes from $240 to $180. Find the percentage decrease.
Answer: 25%
- Change = 240 − 180 = 60
- 60 ÷ 240 × 100 = 25%
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