8th Grade Percentage Increase and Decrease Worksheet — Level 1 — Practice Set 2 — Answers
Answer sheet with worked solutions for the 8th Grade percentages worksheet.
Success TutoringWorksheetsAnswer sheet8th Grade · Mathematics · Percentages8th Grade 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 $340 to $408. Find the percentage increase.
Answer: 20%
- Change = 408 − 340 = 68
- 68 ÷ 340 × 100 = 20%
2.A price changes from $280 to $308. Find the percentage increase.
Answer: 10%
- Change = 308 − 280 = 28
- 28 ÷ 280 × 100 = 10%
3.A price changes from $330 to $363. Find the percentage increase.
Answer: 10%
- Change = 363 − 330 = 33
- 33 ÷ 330 × 100 = 10%
4.A price changes from $350 to $385. Find the percentage increase.
Answer: 10%
- Change = 385 − 350 = 35
- 35 ÷ 350 × 100 = 10%
5.A price changes from $220 to $242. Find the percentage increase.
Answer: 10%
- Change = 242 − 220 = 22
- 22 ÷ 220 × 100 = 10%
6.A price changes from $80 to $100. Find the percentage increase.
Answer: 25%
- Change = 100 − 80 = 20
- 20 ÷ 80 × 100 = 25%
7.A price changes from $290 to $435. Find the percentage increase.
Answer: 50%
- Change = 435 − 290 = 145
- 145 ÷ 290 × 100 = 50%
8.A price changes from $320 to $288. Find the percentage decrease.
Answer: 10%
- Change = 320 − 288 = 32
- 32 ÷ 320 × 100 = 10%
9.A price changes from $150 to $180. Find the percentage increase.
Answer: 20%
- Change = 180 − 150 = 30
- 30 ÷ 150 × 100 = 20%
10.A price changes from $70 to $105. Find the percentage increase.
Answer: 50%
- Change = 105 − 70 = 35
- 35 ÷ 70 × 100 = 50%
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