How to calculate compund interests using excel or google spreadsheet

Today i’ve decided to play around with google docs, and more specificaly google spreadsheets.

The aim of the exercice was to make a tool to calculate compound interests, and here is the result:

Unfortunately you can’t edit the numbers directly on the webpage (it would be a nice feature) as it’s a display only (we could use it to make the first web 2.0 executive dashboards).

So you need to click on the following link if you want to download the excel sheet which will allow you to calculate compund interests.