**To calculate Percentage Increase**

** First: ** work the difference (increase) between the two numbers being compared.

Increase = New Number - Original number

**Second:** divide the increase by the original number and then multiply by 100.

If your answer is a negative number, then it is a percentage decline.

**To calculate Percentage Decrease**

**First: **work the difference (decrease) between the two numbers being compared.

Decrease = Original Issue - New issue

**Second:** divide the decrease of the original number and multiply the result by 100.

If you want to calculate the percentage increase or decrease of several numbers then we recommend using the first formula. Right values indicate a percentage increase while wrong values indicate the percentage decrease.

If you want to calculate the percentage increase or decrease of several numbers then we recommend using the first formula. right values indicate a percentage increase while negative values indicate the percentage decrease Sometimes it is easier to show percentage decrease as a negative number - By following the above formula to calculate percentage increase - your answer will be a negative number if there was a decrease.