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7th Grade Percentage Increase and Decrease Worksheet — Level 3 — Answers

Answer sheet with worked solutions for the 7th Grade percentages worksheet.

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Success TutoringWorksheetsAnswer sheet7th Grade · Mathematics · Percentages

7th Grade Percentage Increase and Decrease Worksheet — Level 3 — Answers

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

1.A price changes from $480 to $576. Find the percentage increase.

Answer: 20%

  1. Change = 576 − 480 = 96
  2. 96 ÷ 480 × 100 = 20%
2.A price changes from $740 to $592. Find the percentage decrease.

Answer: 20%

  1. Change = 740 − 592 = 148
  2. 148 ÷ 740 × 100 = 20%
3.A price changes from $460 to $805. Find the percentage increase.

Answer: 75%

  1. Change = 805 − 460 = 345
  2. 345 ÷ 460 × 100 = 75%
4.A price changes from $340 to $136. Find the percentage decrease.

Answer: 60%

  1. Change = 340 − 136 = 204
  2. 204 ÷ 340 × 100 = 60%
5.After a 75% decrease, a price is $180. What was the original price?

Answer: $720

  1. New price = 25% of the original
  2. Original = 180 ÷ 0.25
  3. = $720
6.After a 25% decrease, a price is $360. What was the original price?

Answer: $480

  1. New price = 75% of the original
  2. Original = 360 ÷ 0.75
  3. = $480
7.A price changes from $340 to $306. Find the percentage decrease.

Answer: 10%

  1. Change = 340 − 306 = 34
  2. 34 ÷ 340 × 100 = 10%
8.After a 25% increase, a price is $250. What was the original price?

Answer: $200

  1. New price = 125% of the original
  2. Original = 250 ÷ 1.25
  3. = $200
9.A price changes from $240 to $216. Find the percentage decrease.

Answer: 10%

  1. Change = 240 − 216 = 24
  2. 24 ÷ 240 × 100 = 10%
10.After a 20% decrease, a price is $208. What was the original price?

Answer: $260

  1. New price = 80% of the original
  2. Original = 208 ÷ 0.8
  3. = $260
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