Question

How do you calculate the percent change of Sales for 2007 $404,729 to Sales for 2008 $571,320?

Answer 1

There are basically two ways to go about this:

Explanation:

Take the difference New minus Old, divide this by Old, and multiply by 100 to get the percentage:

`(571320-404729)/404729xx100`

Or:
Use ratio's. Set Sales 2007 to 100%, and get the number for 2008:

`404729/(100%)=571320/(X%)`

Cross-multiply:
`404729xxX%=571320xx100%->`
`X=57132000/404729=141.16%`

which is a `41.16%` increase over the `100%` we started with.