Percent of Change Worksheets - Free Printable

Of course! I'll solve each of the percent change problems for you and explain the solution step by step.

The formula for Percent Change is:

> Percent Change = (Amount of Change / Original Amount) × 100%

Where:
- Amount of Change = New Amount – Original Amount
- If the result is positive, it’s a percent increase.
- If the result is negative, it’s a percent decrease.

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Problem 1: Find the percent of change from 4,500 oz to 5,075 oz

- Original amount = 4,500 oz
- New amount = 5,075 oz
- Amount of change = 5,075 – 4,500 = 575 oz
- Percent change = (575 / 4,500) × 100% ≈ 12.78%

✔ Answer: 12.78% increase

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Problem 2: Find the percent of change from 70 cups to 42 cups

- Original amount = 70 cups
- New amount = 42 cups
- Amount of change = 42 – 70 = –28 cups
- Percent change = (–28 / 70) × 100% = –40%

✔ Answer: 40% decrease

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Problem 3: Find the percent of change from 260 lbs to 156 lbs

- Original amount = 260 lbs
- New amount = 156 lbs
- Amount of change = 156 – 260 = –104 lbs
- Percent change = (–104 / 260) × 100% = –40%

✔ Answer: 40% decrease

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Problem 4: Find the percent of change from 1,750 rpm to 2,250 rpm

- Original amount = 1,750 rpm
- New amount = 2,250 rpm
- Amount of change = 2,250 – 1,750 = 500 rpm
- Percent change = (500 / 1,750) × 100% ≈ 28.57%

✔ Answer: 28.57% increase

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Problem 5: Find the percent of change from 160 cm to 204 cm

- Original amount = 160 cm
- New amount = 204 cm
- Amount of change = 204 – 160 = 44 cm
- Percent change = (44 / 160) × 100% = 27.5%

✔ Answer: 27.5% increase

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Problem 6: Find the percent of change from 800 ft to 412 ft

- Original amount = 800 ft
- New amount = 412 ft
- Amount of change = 412 – 800 = –388 ft
- Percent change = (–388 / 800) × 100% = –48.5%

✔ Answer: 48.5% decrease

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## ✔ Final Answers:

1. 12.78% increase
2. 40% decrease
3. 40% decrease
4. 28.57% increase
5. 27.5% increase
6. 48.5% decrease

Let me know if you’d like to see these rounded to a specific decimal place or explained with diagrams!