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 decrease?

Back

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

Front

How do you calculate the percent increase?

Back

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

Front

If a price goes from $250 to $200, what is the percent decrease?

Back

20% decrease.

Front

If the number of dogs decreases from 20 to 5, what is the percent change?

Back

75% decrease.

Front

What is the percent change if Erika reduces her salt intake from 5000 mg to 2000 mg?

Back

60% decrease.

Front

If healing time changes from 8 weeks to 3 weeks, what is the percent change?

Back

62.5% decrease.

Front

Miguel read 15 books in 6th grade and 21 in 7th grade. What is the percent change?

Back

40% increase.

Front

What does a positive percent change indicate?

Back

A positive percent change indicates an increase in the quantity.

Front

What does a negative percent change indicate?

Back

A negative percent change indicates a decrease in the quantity.