Drop down menu with multiple formulas

Hi. Hopefully I can explain this properly. I've created a dropdown menu in column G with 4 options (Coke with Buyout, Coke w/o Buyout, Non-Coke with Buyout and Non-Coke w/o Buyout. Column K will populate totals based on numbers in column E, H and J and whatever is selected from my dropdown menu in column G.

The formula below works beautifully until I need to divide the totals by 2 or 50%. I want the totals to be (E:E-H:H-J:J)/2 and (E:E-J:J)/2 and (E:E-H:H)/2 and E:E/2 but I can't figure out how to include division into all the equations so that it works. E:E/2 is the only one that works.

=IF(G:G="Coke with Buyout",E:E-H:H-J:J,IF(G:G="Coke w/o Buyout",E:E-J:J,IF(G:G="Non-Coke with Buyout",E:E-H:H,IF(G:G="Non-Coke w/o Buyout",E:E/2))))

Any help is much appreciated.

Actually cleaning up the columns from G:G to G4, etc. allowed me to add the additional equation I needed. I made something simple into difficult overthinking. Spreadsheet was ready in time for my meeting today. Thanks so much!!!