Percent Change % Error

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.

Tags

CCSS.6.RP.A.3C

Front

How do you calculate Percent Change?

Back

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

Tags

CCSS.6.RP.A.3C

Front

What does a positive Percent Change indicate?

Back

A positive Percent Change indicates an increase in value.

Tags

CCSS.6.RP.A.3C

Front

What does a negative Percent Change indicate?

Back

A negative Percent Change indicates a decrease in value.

Tags

CCSS.6.RP.A.3C

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.

Tags

CCSS.6.RP.A.3C

Front

How do you calculate Percent Error?

Back

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

Front

What is the formula for calculating the decrease in weight?

Back

Percent Decrease = ((Original Weight - New Weight) / Original Weight) x 100.

Tags

CCSS.6.RP.A.3C

Front

If Mary lost 30 pounds from 180 pounds, what is the Percent Decrease?

Back

Percent Decrease = ((180 - 150) / 180) x 100 = 16.67% (approximately 17%).

Tags

CCSS.6.RP.A.3C

Front

If Sam estimated the cost of a book as $50 but it actually costs $56, what is his Percent Error?

Back

Percent Error = (|50 - 56| / 56) x 100 = 10.71% (approximately 10%).

Tags

CCSS.6.RP.A.3C

Front

If Andy expected $60 but received $40, what is his Percent Error?

Back

Percent Error = (|60 - 40| / 60) x 100 = 33.33% (approximately 50%).

Tags

CCSS.6.RP.A.3C