Splitting the Bill
We recently hosted a 60th anniversary party at a lovely venue. Although the other hosts had rather large immediate family, we had planned to split the bill right down the middle. We were also asked to bring a substantial gift from entire family, which we weren't reimbursed for.
This was not a problem for us until additional guests were included. In addition to family and friends of the couple, the guest list expanded to personal friends of the couple sharing these expenses. They did not offer to pay for these additional people.
How should this be handled? Do we split all of that in half? Is there a caveat where extra people are paid for separately from the original guests?