Percent of Change

Front

What is Percent of Change?

Back

Percent of Change is a measure that describes how much a quantity has increased or decreased in relation to its original amount, expressed as a percentage.

Front

How do you calculate Percent of Change?

Back

Percent of Change = ((New Value - Old Value) / Old Value) x 100.

Front

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

Back

20% increase.

Front

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

Back

25% decrease.

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

If a student scores 70 on a test and then scores 85 on the next test, what is the percent increase in their score?

Back

21.43% increase.

Front

If a car's value drops from $20,000 to $15,000, what is the percent decrease in value?

Back

25% decrease.

Front

What is the percent change if a population increases from 1,000 to 1,500?

Back

50% increase.

Front

If a shirt originally costs $40 and is now $30, what is the percent decrease?

Back

25% decrease.