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 $190 to $209. Find the percentage increase.
Answer: 10%
- Change = 209 − 190 = 19
- 19 ÷ 190 × 100 = 10%
2.A price changes from $190 to $171. Find the percentage decrease.
Answer: 10%
- Change = 190 − 171 = 19
- 19 ÷ 190 × 100 = 10%
3.A price changes from $300 to $150. Find the percentage decrease.
Answer: 50%
- Change = 300 − 150 = 150
- 150 ÷ 300 × 100 = 50%
4.A price changes from $210 to $231. Find the percentage increase.
Answer: 10%
- Change = 231 − 210 = 21
- 21 ÷ 210 × 100 = 10%
5.A price changes from $210 to $168. Find the percentage decrease.
Answer: 20%
- Change = 210 − 168 = 42
- 42 ÷ 210 × 100 = 20%
6.A price changes from $40 to $36. Find the percentage decrease.
Answer: 10%
- Change = 40 − 36 = 4
- 4 ÷ 40 × 100 = 10%
7.A price changes from $340 to $272. Find the percentage decrease.
Answer: 20%
- Change = 340 − 272 = 68
- 68 ÷ 340 × 100 = 20%
8.A price changes from $270 to $324. Find the percentage increase.
Answer: 20%
- Change = 324 − 270 = 54
- 54 ÷ 270 × 100 = 20%
9.A price changes from $190 to $95. Find the percentage decrease.
Answer: 50%
- Change = 190 − 95 = 95
- 95 ÷ 190 × 100 = 50%
10.A price changes from $150 to $180. Find the percentage increase.
Answer: 20%
- Change = 180 − 150 = 30
- 30 ÷ 150 × 100 = 20%
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