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 $150 to $75. Find the percentage decrease.
Answer: 50%
- Change = 150 − 75 = 75
- 75 ÷ 150 × 100 = 50%
2.A price changes from $40 to $50. Find the percentage increase.
Answer: 25%
- Change = 50 − 40 = 10
- 10 ÷ 40 × 100 = 25%
3.A price changes from $370 to $296. Find the percentage decrease.
Answer: 20%
- Change = 370 − 296 = 74
- 74 ÷ 370 × 100 = 20%
4.A price changes from $50 to $25. Find the percentage decrease.
Answer: 50%
- Change = 50 − 25 = 25
- 25 ÷ 50 × 100 = 50%
5.A price changes from $250 to $125. Find the percentage decrease.
Answer: 50%
- Change = 250 − 125 = 125
- 125 ÷ 250 × 100 = 50%
6.A price changes from $180 to $144. Find the percentage decrease.
Answer: 20%
- Change = 180 − 144 = 36
- 36 ÷ 180 × 100 = 20%
7.A price changes from $130 to $65. Find the percentage decrease.
Answer: 50%
- Change = 130 − 65 = 65
- 65 ÷ 130 × 100 = 50%
8.A price changes from $120 to $132. Find the percentage increase.
Answer: 10%
- Change = 132 − 120 = 12
- 12 ÷ 120 × 100 = 10%
9.A price changes from $360 to $450. Find the percentage increase.
Answer: 25%
- Change = 450 − 360 = 90
- 90 ÷ 360 × 100 = 25%
10.A price changes from $340 to $408. Find the percentage increase.
Answer: 20%
- Change = 408 − 340 = 68
- 68 ÷ 340 × 100 = 20%
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