PS:
I came across this article Separating Sales Accounts on Ticket that addressed the creation of a separate account for the vendors different from the host’s products, which is a major step in the right direction.
Now the only thing left is how to divide the proceeds from the sales by 70% for host and 30% for host. This should reflect on all tickets printed from the vendors terminal and reports too.
Thank you SambaPOS, my needs are met excellently!