Percent of Change

Front

What is Percent of Change?

Back

Percent of Change is a way to express how much a quantity has increased or decreased in relation to its original amount, calculated as (New Value - Original Value) / Original Value x 100%.

Front

How do you calculate Percent Increase?

Back

Percent Increase = (New Value - Original Value) / Original Value x 100%.

Front

How do you calculate Percent Decrease?

Back

Percent Decrease = (Original Value - New Value) / Original Value x 100%.

Front

If a price increases from $50 to $60, what is the percent increase?

Back

20% increase.

Front

If a price decreases from $80 to $60, what is the percent decrease?

Back

25% decrease.

Front

What is the formula for finding the new value after a percent increase?

Back

New Value = Original Value x (1 + Percent Increase).

Front

What is the formula for finding the new value after a percent decrease?

Back

New Value = Original Value x (1 - Percent Decrease).

Front

If a test time is increased from 30 minutes to 45 minutes, what is the percent increase?

Back

50% increase.

Front

If a salary goes from $40,000 to $50,000, what is the percent increase?

Back

25% increase.

Front

If a product's price drops from $100 to $75, what is the percent decrease?

Back

25% decrease.