Percent of Change

Front

What is the formula to calculate percent change?

Back

Percent Change = ((New Value - Old Value) / Old Value) * 100

Front

If a value decreases from 100 to 85, what is the percent change?

Back

Percent Change = ((85 - 100) / 100) * 100 = -15% (15% decrease)

Front

If a value increases from 50 to 75, what is the percent change?

Back

Percent Change = ((75 - 50) / 50) * 100 = 50% (50% increase)

Front

What does a positive percent change indicate?

Back

A positive percent change indicates an increase in value.

Front

What does a negative percent change indicate?

Back

A negative percent change indicates a decrease in value.

Front

How do you find the new value after a percent increase?

Back

New Value = Old Value + (Old Value * Percent Increase / 100)

Front

How do you find the new value after a percent decrease?

Back

New Value = Old Value - (Old Value * Percent Decrease / 100)

Front

What is the percent change if a population decreases from 2000 to 1800?

Back

Percent Change = ((1800 - 2000) / 2000) * 100 = -10% (10% decrease)

Front

What is the percent change if a product price increases from $30 to $36?

Back

Percent Change = ((36 - 30) / 30) * 100 = 20% (20% increase)

Front

If a stock price goes from $50 to $40, what is the percent change?

Back

Percent Change = ((40 - 50) / 50) * 100 = -20% (20% decrease)