Percent Increase or Decrease

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: \( \text{Percent Increase} = \frac{\text{New Amount} - \text{Original Amount}}{\text{Original Amount}} \times 100 \)

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: \( \text{Percent Decrease} = \frac{\text{Original Amount} - \text{New Amount}}{\text{Original Amount}} \times 100 \)

Front

How do you calculate 12% of a number?

Back

To calculate 12% of a number, multiply the number by 0.12. For example, 12% of 40 is calculated as: \( 40 \times 0.12 = 4.8 \)

Front

What is the formula to find the new amount after a percent increase?

Back

The formula to find the new amount after a percent increase is: \( \text{New Amount} = \text{Original Amount} + (\text{Original Amount} \times \text{Percent Increase}) \)

Front

What is the formula to find the new amount after a percent decrease?

Back

The formula to find the new amount after a percent decrease is: \( \text{New Amount} = \text{Original Amount} - (\text{Original Amount} \times \text{Percent Decrease}) \)

Front

How do you set up the equation to find what percent of a number is another number?

Back

To find what percent of a number is another number, set up the equation: \( \frac{\text{Part}}{\text{Whole}} = \frac{x}{100} \) where 'Part' is the number you are comparing and 'Whole' is the total.

Front

What is 20% of 60?

Back

20% of 60 is calculated as: \( 60 \times 0.20 = 12 \)

Front

If the original amount is 575 and the new amount is 598, what is the percent increase?

Back

Percent Increase = \( \frac{598 - 575}{575} \times 100 = 4\% \)

Front

If the original amount is 600 and the new amount is 606, what is the percent increase?

Back

Percent Increase = \( \frac{606 - 600}{600} \times 100 = 1\% \)

Front

What is the first step in calculating percent change?

Back

The first step in calculating percent change is to find the difference between the new amount and the original amount.