Macro needed to add % markup to two columns of prices. Thank you

[SHBeck]

Hello, I would like a macro that will auto run when an Sheet is opened. I need a window to pop up and ask 'company name' in one field and '% markup' in the other. I would like a start button to initiate a script that inserts a row on the sheet between row 1 and row 2 and then copies text from 'company name' an pastes into text into cell (A,2). I then need the macro to take values from Col E, Row 4 and higher, and multiply it by '% markup', then add the result of markup to the original value, finaly replacing the original value with new adjusted value. Thank you in adavance. Also there a way to delete the macro from the sheet automatically after it runs? Thanks again

 

[SHBeck]

I also need it to perform same calculations of adding markup to values in Col D, row 4 and higher
Thanks for the help