Percent Change II

Front

What is Percent Change?

Back

Percent Change is a measure of how much a quantity has increased or decreased relative to its original value, expressed as a percentage.

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

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 price increases from $50 to $65, what is the percent increase?

Back

Percent Increase = ((65 - 50) / 50) x 100 = 30%.

Front

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

Back

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

Front

What does a 100% increase mean?

Back

A 100% increase means the new value is double the original value.

Front

What does a 50% decrease mean?

Back

A 50% decrease means the new value is half of the original value.

Front

How do you round a percent change to the nearest whole number?

Back

Look at the decimal: if it's 0.5 or higher, round up; if it's less than 0.5, round down.