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 - Old Value) / Old Value) x 100.

Tags

CCSS.6.RP.A.3C

Front

If Ricky scored 80 in math and then 86, what is the percent change?

Back

7.5% increase.

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 actual value.

Front

How do you calculate percent error?

Back

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

Front

If you estimated 135 texts but actually sent 108, what is the percent error?

Back

25%.

Tags

CCSS.6.RP.A.3C

Front

What is the formula for calculating the percent of change in a class size?

Back

Percent Change = ((New Class Size - Old Class Size) / Old Class Size) x 100.

Tags

CCSS.6.RP.A.3C

Front

If Mrs. Tagliaferro had 27 students last year and 30 this year, what is the percent change?

Back

11%.

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