10th Grade Percentage Increase and Decrease Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the 10th Grade percentages worksheet.
Success TutoringWorksheetsAnswer sheet10th Grade · Mathematics · Percentages10th Grade 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 $140 to $98. Find the percentage decrease.
Answer: 30%
- Change = 140 − 98 = 42
- 42 ÷ 140 × 100 = 30%
2.A price changes from $200 to $350. Find the percentage increase.
Answer: 75%
- Change = 350 − 200 = 150
- 150 ÷ 200 × 100 = 75%
3.A price changes from $560 to $392. Find the percentage decrease.
Answer: 30%
- Change = 560 − 392 = 168
- 168 ÷ 560 × 100 = 30%
4.A price changes from $220 to $176. Find the percentage decrease.
Answer: 20%
- Change = 220 − 176 = 44
- 44 ÷ 220 × 100 = 20%
5.A price changes from $580 to $232. Find the percentage decrease.
Answer: 60%
- Change = 580 − 232 = 348
- 348 ÷ 580 × 100 = 60%
6.A price changes from $360 to $288. Find the percentage decrease.
Answer: 20%
- Change = 360 − 288 = 72
- 72 ÷ 360 × 100 = 20%
7.A price changes from $560 to $728. Find the percentage increase.
Answer: 30%
- Change = 728 − 560 = 168
- 168 ÷ 560 × 100 = 30%
8.A price changes from $380 to $532. Find the percentage increase.
Answer: 40%
- Change = 532 − 380 = 152
- 152 ÷ 380 × 100 = 40%
9.A price changes from $60 to $54. Find the percentage decrease.
Answer: 10%
- Change = 60 − 54 = 6
- 6 ÷ 60 × 100 = 10%
10.A price changes from $600 to $150. Find the percentage decrease.
Answer: 75%
- Change = 600 − 150 = 450
- 450 ÷ 600 × 100 = 75%
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.