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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 value, expressed as a percentage.

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How do you calculate Percent of Change?

Back

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

Front

If the original cost is $50 and the new cost is $60, what is the percent of change?

Back

Increase 20%.

Front

What is Percent Error?

Back

Percent Error is a measure of how inaccurate a measurement is, compared to the true value, expressed as a percentage.

Front

How do you calculate Percent Error?

Back

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

Front

If the estimated deer population is 17,600 and the actual count is 21,300, what is the percent error?

Back

17.4%.

Front

What is the formula to calculate commission?

Back

Commission = Sale Price x Commission Rate.

Front

If Josie sells a car for $50,000 and makes a 20% commission, how much does she earn?

Back

$10,000.

Front

What does a discount mean in shopping?

Back

A discount is a reduction in the original price of a product or service.

Front

How do you calculate the sale price after applying a discount?

Back

Sale Price = Original Price - (Original Price x Discount Rate).