Percent Increase and Percent Error

Front

What is percent increase?

Back

Percent increase is a way to express how much a quantity has grown relative to its original amount, calculated as: \( \frac{new\ value - original\ value}{original\ value} \times 100 \)

Front

How do you calculate percent increase?

Back

To calculate percent increase, subtract the original value from the new value, divide by the original value, and multiply by 100.

Front

What is the formula for percent increase?

Back

The formula for percent increase is: \( \frac{new\ value - original\ value}{original\ value} \times 100 \)

Front

If a price increases from $50 to $75, what is the percent increase?

Back

Percent increase = \( \frac{75 - 50}{50} \times 100 = 50\% \)

Front

What is percent error?

Back

Percent error is a measure of how inaccurate a measurement is, expressed as a percentage of the true value, calculated as: \( \frac{|estimated\ value - true\ value|}{true\ value} \times 100 \)

Front

How do you calculate percent error?

Back

To calculate percent error, subtract the estimated value from the true value, take the absolute value, divide by the true value, and multiply by 100.

Front

What is the formula for percent error?

Back

The formula for percent error is: \( \frac{|estimated\ value - true\ value|}{true\ value} \times 100 \)

Front

If a student estimates a test score of 85 but the actual score is 90, what is the percent error?

Back

Percent error = \( \frac{|85 - 90|}{90} \times 100 = 5.56\% \)

Front

What does a percent increase of 0% indicate?

Back

A percent increase of 0% indicates that there has been no change in the value.

Front

What does a negative percent increase indicate?

Back

A negative percent increase indicates a decrease in value.