# An increase from 16 to 20 is what percent of increase?

##### 1 Answer

Oct 5, 2016

#### Answer:

25%

#### Explanation:

Your measure start at 16. So that is the basis (unless stated otherwise) upon which you reference the change.

That is:

This gives:

For this to be a percentage we need the denominator such that it becomes 100. Thus we have:

To express this in the standard script form we have 25%

'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Foot note:

Sometimes the use of % and its meaning is misunderstood.

The % that follows the 25 really means that we have 25 parts out of 100. In other words:

To coin a phrase; 25% and