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 the percent increase?

Back

To calculate the percent increase, use the formula: ((New Value - Original Value) / Original Value) x 100%.

Front

How do you calculate the percent decrease?

Back

To calculate the percent decrease, use the formula: ((Original Value - New Value) / Original Value) x 100%.

Front

If the price of an item increases from $50 to $75, what is the percent increase?

Back

Percent Increase = ((75 - 50) / 50) x 100% = 50%.

Front

If the price of an item decreases from $80 to $60, what is the percent decrease?

Back

Percent Decrease = ((80 - 60) / 80) x 100% = 25%.

Front

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

Back

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

Front

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

Back

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

Front

If a shirt originally costs $30 and is on sale for $24, what is the percent decrease?

Back

Percent Decrease = ((30 - 24) / 30) x 100% = 20%.

Front

What does a percent change of 0% indicate?

Back

A percent change of 0% indicates that there has been no change in the value.

Front

If a population decreases from 200 to 150, what is the percent change?

Back

Percent Decrease = ((200 - 150) / 200) x 100% = 25%.