I edited the excel sheet you can use to calculate your profits. It now includes a calculation of your warehouse costs. You are still free to edit the the excel sheet if you want to. The file is protected to avoid accidental mess ups but the password is in there if you feel pro enough :).

This file might be of great use to manage your company because it gives a good overview of what your greater costs are which you should be focussing on. No more randomly hiring staff!

You can download it here.