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8th Grade Percentage Increase and Decrease Worksheet — Level 2 — 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 2 — Practice Set 4 — Answers

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

1.A price changes from $340 to $442. Find the percentage increase.

Answer: 30%

  1. Change = 442 − 340 = 102
  2. 102 ÷ 340 × 100 = 30%
2.A price changes from $440 to $506. Find the percentage increase.

Answer: 15%

  1. Change = 506 − 440 = 66
  2. 66 ÷ 440 × 100 = 15%
3.A price changes from $60 to $78. Find the percentage increase.

Answer: 30%

  1. Change = 78 − 60 = 18
  2. 18 ÷ 60 × 100 = 30%
4.A price changes from $540 to $324. Find the percentage decrease.

Answer: 40%

  1. Change = 540 − 324 = 216
  2. 216 ÷ 540 × 100 = 40%
5.A price changes from $160 to $208. Find the percentage increase.

Answer: 30%

  1. Change = 208 − 160 = 48
  2. 48 ÷ 160 × 100 = 30%
6.A price changes from $480 to $528. Find the percentage increase.

Answer: 10%

  1. Change = 528 − 480 = 48
  2. 48 ÷ 480 × 100 = 10%
7.A price changes from $380 to $323. Find the percentage decrease.

Answer: 15%

  1. Change = 380 − 323 = 57
  2. 57 ÷ 380 × 100 = 15%
8.A price changes from $740 to $444. Find the percentage decrease.

Answer: 40%

  1. Change = 740 − 444 = 296
  2. 296 ÷ 740 × 100 = 40%
9.A price changes from $160 to $144. Find the percentage decrease.

Answer: 10%

  1. Change = 160 − 144 = 16
  2. 16 ÷ 160 × 100 = 10%
10.A price changes from $120 to $168. Find the percentage increase.

Answer: 40%

  1. Change = 168 − 120 = 48
  2. 48 ÷ 120 × 100 = 40%
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