Our company(A)is acting a billing service for company (B). Company B sends their Sales Reps out to the field. A sale is made and are expected to do the billing for this sale. Company B will wants to produce the invoice on their accounting system because to them it is a "sale". We send out the invoice, collect the funds, calculate a percentage fee and send Company B the net amount. As the billing company (A), how do we set up the accounting for this.

Funds Received
Fee for Service
Pmt to Company B