Today I spent just a little time creating a excel file that can calculate the earnings of any 1 investment.

http://www.asianpaysurfer.com/investbook.xls


Feel free to use this, as I improve the file and allow more options like multiple investments I will continue to update this thread.

Thanks so much Rollinhigh, it's very useful and easy to calculate for me .

Investor fees and withdrawal fees are not calculated.