Success TutoringWorksheets

Year 8 Percentage Increase and Decrease Worksheet — Level 2 — Answers

Answer sheet with worked solutions for the Year 8 percentages worksheet.

Success TutoringWorksheetsAnswer sheetYear 8 · Mathematics · Percentages

Year 8 Percentage Increase and Decrease Worksheet — Level 2 — Answers

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

1.A price changes from $460 to $276. Find the percentage decrease.

Answer: 40%

  1. Change = 460 − 276 = 184
  2. 184 ÷ 460 × 100 = 40%
2.A price changes from $240 to $96. Find the percentage decrease.

Answer: 60%

  1. Change = 240 − 96 = 144
  2. 144 ÷ 240 × 100 = 60%
3.A price changes from $540 to $945. Find the percentage increase.

Answer: 75%

  1. Change = 945 − 540 = 405
  2. 405 ÷ 540 × 100 = 75%
4.A price changes from $300 to $420. Find the percentage increase.

Answer: 40%

  1. Change = 420 − 300 = 120
  2. 120 ÷ 300 × 100 = 40%
5.A price changes from $700 to $980. Find the percentage increase.

Answer: 40%

  1. Change = 980 − 700 = 280
  2. 280 ÷ 700 × 100 = 40%
6.A price changes from $680 to $884. Find the percentage increase.

Answer: 30%

  1. Change = 884 − 680 = 204
  2. 204 ÷ 680 × 100 = 30%
7.A price changes from $320 to $416. Find the percentage increase.

Answer: 30%

  1. Change = 416 − 320 = 96
  2. 96 ÷ 320 × 100 = 30%
8.A price changes from $100 to $88. Find the percentage decrease.

Answer: 12%

  1. Change = 100 − 88 = 12
  2. 12 ÷ 100 × 100 = 12%
9.A price changes from $120 to $30. Find the percentage decrease.

Answer: 75%

  1. Change = 120 − 30 = 90
  2. 90 ÷ 120 × 100 = 75%
10.A price changes from $140 to $175. Find the percentage increase.

Answer: 25%

  1. Change = 175 − 140 = 35
  2. 35 ÷ 140 × 100 = 25%
Free worksheets at worksheets.successtutoring.com · © Success Tutoring · Free for personal and classroom use

Marking tips

  • Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
  • For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
  • Celebrate what went well first, then pick one thing to work on next.