Percent Increase and Decrease

Percent Increase and Decrease

Assessment

Flashcard

Mathematics

9th - 12th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is Percent Increase?

Back

Percent Increase is the amount of increase expressed as a percentage of the original amount. It is calculated using the formula: Percent Increase = \( \frac{(New Value - Original Value)}{Original Value} \times 100 \)

2.

FLASHCARD QUESTION

Front

What is Percent Decrease?

Back

Percent Decrease is the amount of decrease expressed as a percentage of the original amount. It is calculated using the formula: Percent Decrease = \( \frac{(Original Value - New Value)}{Original Value} \times 100 \)

3.

FLASHCARD QUESTION

Front

How do you calculate a 10% increase on a number?

Back

To calculate a 10% increase on a number, multiply the number by 0.10 and then add that value to the original number. Example: For 100, 10% increase = 100 + (100 \times 0.10) = 110.

4.

FLASHCARD QUESTION

Front

How do you calculate a 15% decrease on a number?

Back

To calculate a 15% decrease on a number, multiply the number by 0.15 and then subtract that value from the original number. Example: For 200, 15% decrease = 200 - (200 \times 0.15) = 170.

5.

FLASHCARD QUESTION

Front

What is the multiplier for a 20% increase?

Back

The multiplier for a 20% increase is 1.20. This means you multiply the original amount by 1.20 to find the new amount.

6.

FLASHCARD QUESTION

Front

What is the multiplier for a 25% decrease?

Back

The multiplier for a 25% decrease is 0.75. This means you multiply the original amount by 0.75 to find the new amount.

7.

FLASHCARD QUESTION

Front

If a shirt costs $40 and is on sale for 30% off, what is the sale price?

Back

To find the sale price, calculate 30% of $40, which is $12. Then subtract that from the original price: $40 - $12 = $28.

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