9th Grade Percentage Increase and Decrease Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the 9th Grade percentages worksheet.
Success TutoringWorksheetsAnswer sheet9th Grade · Mathematics · Percentages9th Grade Percentage Increase and Decrease Worksheet — Level 1 — Practice Set 3 — Answers
Percentage change = change ÷ original amount × 100. Always divide by the original amount.
1.A price changes from $250 to $200. Find the percentage decrease.
Answer: 20%
- Change = 250 − 200 = 50
- 50 ÷ 250 × 100 = 20%
2.A price changes from $280 to $224. Find the percentage decrease.
Answer: 20%
- Change = 280 − 224 = 56
- 56 ÷ 280 × 100 = 20%
3.A price changes from $30 to $27. Find the percentage decrease.
Answer: 10%
- Change = 30 − 27 = 3
- 3 ÷ 30 × 100 = 10%
4.A price changes from $290 to $319. Find the percentage increase.
Answer: 10%
- Change = 319 − 290 = 29
- 29 ÷ 290 × 100 = 10%
5.A price changes from $210 to $231. Find the percentage increase.
Answer: 10%
- Change = 231 − 210 = 21
- 21 ÷ 210 × 100 = 10%
6.A price changes from $380 to $285. Find the percentage decrease.
Answer: 25%
- Change = 380 − 285 = 95
- 95 ÷ 380 × 100 = 25%
7.A price changes from $80 to $88. Find the percentage increase.
Answer: 10%
- Change = 88 − 80 = 8
- 8 ÷ 80 × 100 = 10%
8.A price changes from $220 to $198. Find the percentage decrease.
Answer: 10%
- Change = 220 − 198 = 22
- 22 ÷ 220 × 100 = 10%
9.A price changes from $50 to $45. Find the percentage decrease.
Answer: 10%
- Change = 50 − 45 = 5
- 5 ÷ 50 × 100 = 10%
10.A price changes from $80 to $96. Find the percentage increase.
Answer: 20%
- Change = 96 − 80 = 16
- 16 ÷ 80 × 100 = 20%
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