Year 9 Percentage Increase and Decrease Worksheet — Level 2 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 9 percentages worksheet.
Success TutoringWorksheetsAnswer sheetYear 9 · Mathematics · PercentagesYear 9 Percentage Increase and Decrease Worksheet — Level 2 — Practice Set 2 — Answers
Percentage change = change ÷ original amount × 100. Always divide by the original amount.
1.A price changes from $360 to $90. Find the percentage decrease.
Answer: 75%
- Change = 360 − 90 = 270
- 270 ÷ 360 × 100 = 75%
2.A price changes from $760 to $532. Find the percentage decrease.
Answer: 30%
- Change = 760 − 532 = 228
- 228 ÷ 760 × 100 = 30%
3.A price changes from $60 to $24. Find the percentage decrease.
Answer: 60%
- Change = 60 − 24 = 36
- 36 ÷ 60 × 100 = 60%
4.A price changes from $240 to $384. Find the percentage increase.
Answer: 60%
- Change = 384 − 240 = 144
- 144 ÷ 240 × 100 = 60%
5.A price changes from $480 to $120. Find the percentage decrease.
Answer: 75%
- Change = 480 − 120 = 360
- 360 ÷ 480 × 100 = 75%
6.A price changes from $480 to $408. Find the percentage decrease.
Answer: 15%
- Change = 480 − 408 = 72
- 72 ÷ 480 × 100 = 15%
7.A price changes from $220 to $187. Find the percentage decrease.
Answer: 15%
- Change = 220 − 187 = 33
- 33 ÷ 220 × 100 = 15%
8.A price changes from $100 to $88. Find the percentage decrease.
Answer: 12%
- Change = 100 − 88 = 12
- 12 ÷ 100 × 100 = 12%
9.A price changes from $580 to $812. Find the percentage increase.
Answer: 40%
- Change = 812 − 580 = 232
- 232 ÷ 580 × 100 = 40%
10.A price changes from $100 to $175. Find the percentage increase.
Answer: 75%
- Change = 175 − 100 = 75
- 75 ÷ 100 × 100 = 75%
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