8th Grade Percentage Increase and Decrease Worksheet — Level 1 — 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 — Answers
Percentage change = change ÷ original amount × 100. Always divide by the original amount.
1.A price changes from $80 to $40. Find the percentage decrease.
Answer: 50%
- Change = 80 − 40 = 40
- 40 ÷ 80 × 100 = 50%
2.A price changes from $390 to $351. Find the percentage decrease.
Answer: 10%
- Change = 390 − 351 = 39
- 39 ÷ 390 × 100 = 10%
3.A price changes from $130 to $117. Find the percentage decrease.
Answer: 10%
- Change = 130 − 117 = 13
- 13 ÷ 130 × 100 = 10%
4.A price changes from $290 to $261. Find the percentage decrease.
Answer: 10%
- Change = 290 − 261 = 29
- 29 ÷ 290 × 100 = 10%
5.A price changes from $180 to $135. Find the percentage decrease.
Answer: 25%
- Change = 180 − 135 = 45
- 45 ÷ 180 × 100 = 25%
6.A price changes from $180 to $144. Find the percentage decrease.
Answer: 20%
- Change = 180 − 144 = 36
- 36 ÷ 180 × 100 = 20%
7.A price changes from $160 to $144. Find the percentage decrease.
Answer: 10%
- Change = 160 − 144 = 16
- 16 ÷ 160 × 100 = 10%
8.A price changes from $380 to $304. Find the percentage decrease.
Answer: 20%
- Change = 380 − 304 = 76
- 76 ÷ 380 × 100 = 20%
9.A price changes from $140 to $154. Find the percentage increase.
Answer: 10%
- Change = 154 − 140 = 14
- 14 ÷ 140 × 100 = 10%
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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