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 $220 to $110. Find the percentage decrease.
Answer: 50%
- Change = 220 − 110 = 110
- 110 ÷ 220 × 100 = 50%
2.A price changes from $370 to $333. Find the percentage decrease.
Answer: 10%
- Change = 370 − 333 = 37
- 37 ÷ 370 × 100 = 10%
3.A price changes from $40 to $44. Find the percentage increase.
Answer: 10%
- Change = 44 − 40 = 4
- 4 ÷ 40 × 100 = 10%
4.A price changes from $130 to $65. Find the percentage decrease.
Answer: 50%
- Change = 130 − 65 = 65
- 65 ÷ 130 × 100 = 50%
5.A price changes from $230 to $207. Find the percentage decrease.
Answer: 10%
- Change = 230 − 207 = 23
- 23 ÷ 230 × 100 = 10%
6.A price changes from $140 to $154. Find the percentage increase.
Answer: 10%
- Change = 154 − 140 = 14
- 14 ÷ 140 × 100 = 10%
7.A price changes from $350 to $525. Find the percentage increase.
Answer: 50%
- Change = 525 − 350 = 175
- 175 ÷ 350 × 100 = 50%
8.A price changes from $170 to $153. Find the percentage decrease.
Answer: 10%
- Change = 170 − 153 = 17
- 17 ÷ 170 × 100 = 10%
9.A price changes from $70 to $35. Find the percentage decrease.
Answer: 50%
- Change = 70 − 35 = 35
- 35 ÷ 70 × 100 = 50%
10.A price changes from $20 to $25. Find the percentage increase.
Answer: 25%
- Change = 25 − 20 = 5
- 5 ÷ 20 × 100 = 25%
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