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 - Old Value) / Old Value x 100%.

Front

How do you calculate the percent increase?

Back

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

Front

How do you calculate the percent decrease?

Back

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

Front

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

Back

Increase 20%.

Front

If snowfall increases from 4 inches to 20 inches, what is the percent increase?

Back

Increase 400%.

Front

What is the percent change if enrollment goes from 465 to 525 students?

Back

Increase 13%.

Front

If the time allowed for a test increases from 20 minutes to 42 minutes, what is the percent increase?

Back

Increase 110%.

Front

If 72 people received speeding tickets one week and 36 the next, what is the percent change?

Back

Decrease 50%.

Front

What is the formula for calculating percent of change?

Back

Percent of Change = (Change in Value / Original Value) x 100%.

Front

What does a positive percent change indicate?

Back

A positive percent change indicates an increase in value.