Forecasting

Dear Forummembers,

Please find attached an Excel workbook with multiple sheets. On the first sheet on the left side of the dotted line you can find an Excel forecasting example I took from the internet. On the right side of the dotted line you can find the same method applied to my own data. The other sheets are different products to which the same method is applied. My question to you is if you could take a look and see if there is anything to improve. My main question is if I have used the right forecasting method. I am not quite sure about the specific method I have choosen.

Please let me know what you think.

Cordially,

BremmesN