Percent Increase, Decrease, Error

Front

What is percent error?

Back

Percent error is a measure of how inaccurate a guess or estimate is compared to the actual value, expressed as a percentage.

Front

How do you calculate percent error?

Back

Percent Error = |(Actual Value - Estimated Value)| / Actual Value × 100%.

Front

What is the formula for percent increase?

Back

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

Front

What is the formula for percent decrease?

Back

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

Front

Calculate the percent error if the actual weight is 47 pounds and the estimated weight is 40 pounds.

Back

Percent Error = |(47 - 40)| / 47 × 100% = 14.9%.

Front

Find the percent decrease from 20 dogs to 16 dogs.

Back

Percent Decrease = (20 - 16) / 20 × 100% = 20%.

Front

Find the percent increase from 100 MB to 145 MB.

Back

Percent Increase = (145 - 100) / 100 × 100% = 45%.

Front

Calculate the percent error if the predicted temperature is 60 degrees and the actual temperature is 80 degrees.

Back

Percent Error = |(80 - 60)| / 80 × 100% = 25%.

Front

Find the percent increase from 5 feet to 12 feet.

Back

Percent Increase = (12 - 5) / 5 × 100% = 140%.

Front

What does a percent increase indicate?

Back

A percent increase indicates how much a value has grown compared to its original amount.