Year 8 Percentage Increase and Decrease Worksheet — Level 1 — Practice Set 4 — 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 4 — Answers
Percentage change = change ÷ original amount × 100. Always divide by the original amount.
1.A price changes from $340 to $255. Find the percentage decrease.
Answer: 25%
- Change = 340 − 255 = 85
- 85 ÷ 340 × 100 = 25%
2.A price changes from $230 to $184. Find the percentage decrease.
Answer: 20%
- Change = 230 − 184 = 46
- 46 ÷ 230 × 100 = 20%
3.A price changes from $370 to $185. Find the percentage decrease.
Answer: 50%
- Change = 370 − 185 = 185
- 185 ÷ 370 × 100 = 50%
4.A price changes from $50 to $60. Find the percentage increase.
Answer: 20%
- Change = 60 − 50 = 10
- 10 ÷ 50 × 100 = 20%
5.A price changes from $230 to $345. Find the percentage increase.
Answer: 50%
- Change = 345 − 230 = 115
- 115 ÷ 230 × 100 = 50%
6.A price changes from $240 to $300. Find the percentage increase.
Answer: 25%
- Change = 300 − 240 = 60
- 60 ÷ 240 × 100 = 25%
7.A price changes from $400 to $300. Find the percentage decrease.
Answer: 25%
- Change = 400 − 300 = 100
- 100 ÷ 400 × 100 = 25%
8.A price changes from $400 to $600. Find the percentage increase.
Answer: 50%
- Change = 600 − 400 = 200
- 200 ÷ 400 × 100 = 50%
9.A price changes from $130 to $117. Find the percentage decrease.
Answer: 10%
- Change = 130 − 117 = 13
- 13 ÷ 130 × 100 = 10%
10.A price changes from $40 to $20. Find the percentage decrease.
Answer: 50%
- Change = 40 − 20 = 20
- 20 ÷ 40 × 100 = 50%
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