9th Grade Percentage Increase and Decrease Worksheet — Level 2 — Practice Set 3 — Answers
Answer sheet with worked solutions for the 9th Grade percentages worksheet.
Success TutoringWorksheetsAnswer sheet9th Grade · Mathematics · Percentages9th Grade 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 $380 to $266. Find the percentage decrease.
Answer: 30%
- Change = 380 − 266 = 114
- 114 ÷ 380 × 100 = 30%
2.A price changes from $580 to $406. Find the percentage decrease.
Answer: 30%
- Change = 580 − 406 = 174
- 174 ÷ 580 × 100 = 30%
3.A price changes from $520 to $598. Find the percentage increase.
Answer: 15%
- Change = 598 − 520 = 78
- 78 ÷ 520 × 100 = 15%
4.A price changes from $240 to $276. Find the percentage increase.
Answer: 15%
- Change = 276 − 240 = 36
- 36 ÷ 240 × 100 = 15%
5.A price changes from $460 to $529. Find the percentage increase.
Answer: 15%
- Change = 529 − 460 = 69
- 69 ÷ 460 × 100 = 15%
6.A price changes from $80 to $84. Find the percentage increase.
Answer: 5%
- Change = 84 − 80 = 4
- 4 ÷ 80 × 100 = 5%
7.A price changes from $320 to $512. Find the percentage increase.
Answer: 60%
- Change = 512 − 320 = 192
- 192 ÷ 320 × 100 = 60%
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 $280 to $266. Find the percentage decrease.
Answer: 5%
- Change = 280 − 266 = 14
- 14 ÷ 280 × 100 = 5%
10.A price changes from $740 to $185. Find the percentage decrease.
Answer: 75%
- Change = 740 − 185 = 555
- 555 ÷ 740 × 100 = 75%
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