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8th Grade Percentage Increase and Decrease Worksheet — Level 1 — Practice Set 4 — Answers

Answer sheet with worked solutions for the 8th Grade percentages worksheet.

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Success TutoringWorksheetsAnswer sheet8th Grade · Mathematics · Percentages

8th Grade Percentage Increase and Decrease Worksheet — Level 1 — Practice Set 4 — Answers

Percentage change = change ÷ original amount × 100. Always divide by the original amount.

1.A price changes from $260 to $130. Find the percentage decrease.

Answer: 50%

  1. Change = 260 − 130 = 130
  2. 130 ÷ 260 × 100 = 50%
2.A price changes from $400 to $600. Find the percentage increase.

Answer: 50%

  1. Change = 600 − 400 = 200
  2. 200 ÷ 400 × 100 = 50%
3.A price changes from $140 to $154. Find the percentage increase.

Answer: 10%

  1. Change = 154 − 140 = 14
  2. 14 ÷ 140 × 100 = 10%
4.A price changes from $100 to $150. Find the percentage increase.

Answer: 50%

  1. Change = 150 − 100 = 50
  2. 50 ÷ 100 × 100 = 50%
5.A price changes from $170 to $153. Find the percentage decrease.

Answer: 10%

  1. Change = 170 − 153 = 17
  2. 17 ÷ 170 × 100 = 10%
6.A price changes from $320 to $400. Find the percentage increase.

Answer: 25%

  1. Change = 400 − 320 = 80
  2. 80 ÷ 320 × 100 = 25%
7.A price changes from $310 to $155. Find the percentage decrease.

Answer: 50%

  1. Change = 310 − 155 = 155
  2. 155 ÷ 310 × 100 = 50%
8.A price changes from $180 to $270. Find the percentage increase.

Answer: 50%

  1. Change = 270 − 180 = 90
  2. 90 ÷ 180 × 100 = 50%
9.A price changes from $210 to $168. Find the percentage decrease.

Answer: 20%

  1. Change = 210 − 168 = 42
  2. 42 ÷ 210 × 100 = 20%
10.A price changes from $140 to $112. Find the percentage decrease.

Answer: 20%

  1. Change = 140 − 112 = 28
  2. 28 ÷ 140 × 100 = 20%
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