9th Grade Percentage Increase and Decrease Worksheet — Level 2 — Practice Set 4 — 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 4 — Answers
Percentage change = change ÷ original amount × 100. Always divide by the original amount.
1.A price changes from $520 to $468. Find the percentage decrease.
Answer: 10%
- Change = 520 − 468 = 52
- 52 ÷ 520 × 100 = 10%
2.A price changes from $720 to $576. Find the percentage decrease.
Answer: 20%
- Change = 720 − 576 = 144
- 144 ÷ 720 × 100 = 20%
3.A price changes from $680 to $646. Find the percentage decrease.
Answer: 5%
- Change = 680 − 646 = 34
- 34 ÷ 680 × 100 = 5%
4.A price changes from $260 to $299. Find the percentage increase.
Answer: 15%
- Change = 299 − 260 = 39
- 39 ÷ 260 × 100 = 15%
5.A price changes from $40 to $36. Find the percentage decrease.
Answer: 10%
- Change = 40 − 36 = 4
- 4 ÷ 40 × 100 = 10%
6.A price changes from $160 to $64. Find the percentage decrease.
Answer: 60%
- Change = 160 − 64 = 96
- 96 ÷ 160 × 100 = 60%
7.A price changes from $420 to $336. Find the percentage decrease.
Answer: 20%
- Change = 420 − 336 = 84
- 84 ÷ 420 × 100 = 20%
8.A price changes from $240 to $60. Find the percentage decrease.
Answer: 75%
- Change = 240 − 60 = 180
- 180 ÷ 240 × 100 = 75%
9.A price changes from $800 to $960. Find the percentage increase.
Answer: 20%
- Change = 960 − 800 = 160
- 160 ÷ 800 × 100 = 20%
10.A price changes from $360 to $432. Find the percentage increase.
Answer: 20%
- Change = 432 − 360 = 72
- 72 ÷ 360 × 100 = 20%
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