Year 8 Percentage Increase and Decrease Worksheet — Level 2 — Practice Set 3 — 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 2 — Practice Set 3 — Answers
Percentage change = change ÷ original amount × 100. Always divide by the original amount.
1.A price changes from $160 to $280. Find the percentage increase.
Answer: 75%
- Change = 280 − 160 = 120
- 120 ÷ 160 × 100 = 75%
2.A price changes from $100 to $90. Find the percentage decrease.
Answer: 10%
- Change = 100 − 90 = 10
- 10 ÷ 100 × 100 = 10%
3.A price changes from $220 to $176. Find the percentage decrease.
Answer: 20%
- Change = 220 − 176 = 44
- 44 ÷ 220 × 100 = 20%
4.A price changes from $460 to $736. Find the percentage increase.
Answer: 60%
- Change = 736 − 460 = 276
- 276 ÷ 460 × 100 = 60%
5.A price changes from $620 to $589. Find the percentage decrease.
Answer: 5%
- Change = 620 − 589 = 31
- 31 ÷ 620 × 100 = 5%
6.A price changes from $700 to $875. Find the percentage increase.
Answer: 25%
- Change = 875 − 700 = 175
- 175 ÷ 700 × 100 = 25%
7.A price changes from $780 to $1014. Find the percentage increase.
Answer: 30%
- Change = 1014 − 780 = 234
- 234 ÷ 780 × 100 = 30%
8.A price changes from $80 to $32. Find the percentage decrease.
Answer: 60%
- Change = 80 − 32 = 48
- 48 ÷ 80 × 100 = 60%
9.A price changes from $420 to $252. Find the percentage decrease.
Answer: 40%
- Change = 420 − 252 = 168
- 168 ÷ 420 × 100 = 40%
10.A price changes from $500 to $600. Find the percentage increase.
Answer: 20%
- Change = 600 − 500 = 100
- 100 ÷ 500 × 100 = 20%
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