Year 11 Percentage Increase and Decrease Worksheet — Level 1 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 11 percentages worksheet.
Success TutoringWorksheetsAnswer sheetYear 11 · Mathematics · PercentagesYear 11 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 $95. Find the percentage decrease.
Answer: 50%
- Change = 190 − 95 = 95
- 95 ÷ 190 × 100 = 50%
2.A price changes from $170 to $136. Find the percentage decrease.
Answer: 20%
- Change = 170 − 136 = 34
- 34 ÷ 170 × 100 = 20%
3.A price changes from $340 to $255. Find the percentage decrease.
Answer: 25%
- Change = 340 − 255 = 85
- 85 ÷ 340 × 100 = 25%
4.A price changes from $340 to $510. Find the percentage increase.
Answer: 50%
- Change = 510 − 340 = 170
- 170 ÷ 340 × 100 = 50%
5.A price changes from $270 to $243. Find the percentage decrease.
Answer: 10%
- Change = 270 − 243 = 27
- 27 ÷ 270 × 100 = 10%
6.A price changes from $180 to $225. Find the percentage increase.
Answer: 25%
- Change = 225 − 180 = 45
- 45 ÷ 180 × 100 = 25%
7.A price changes from $170 to $255. Find the percentage increase.
Answer: 50%
- Change = 255 − 170 = 85
- 85 ÷ 170 × 100 = 50%
8.A price changes from $250 to $275. Find the percentage increase.
Answer: 10%
- Change = 275 − 250 = 25
- 25 ÷ 250 × 100 = 10%
9.A price changes from $300 to $225. Find the percentage decrease.
Answer: 25%
- Change = 300 − 225 = 75
- 75 ÷ 300 × 100 = 25%
10.A price changes from $240 to $360. Find the percentage increase.
Answer: 50%
- Change = 360 − 240 = 120
- 120 ÷ 240 × 100 = 50%
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