Create code in VBA to do the following when a button is clicked Place formulae in the black cells that sum the monthly sales values for each product...

Create code in VBA to do the following when a button is clicked

Place formulae in the black cells that sum the monthly sales values for each product in the table beginning at range UpperLeft. Do this in a single VBA statement by using a dynamic range name for the black cells so that your code will still work if additional months and/or products are added to the table.

I don't know how to attach files. I will send more details and the xlsm file separately.