Dividing cell by 2 criteria

I'am working on a Premium Tracker for my office where my sales agents can keep track of their sales/commissions.
Sort of have everything I need but I hit a bump along the way. Quote/Bind I am trying to figure out how to divide the premium they input into the "Premium Cell" if they put yes or no on quote bind. You see if one agent quotes a policy and another agent sales it they would split the premium