# Percentage calculation with negative and positive numbers.

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I need to know the answer and formula for the following

in 2003 the store had a negative sale day of -$873

in 2004 the same store had a positive result of $2680

What is the percent of increase from the negative to the positve?

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#### Solution Preview

Solution. We use a formula

The percent of increase=(New minus old) divided by ...

#### Solution Summary

A Percentage calculation with negative and positive numbers is performed.

$2.49