You can have your two co-wrokers each "contribute" one-third.

Jon Kraus

Mike Granby wrote:
I flew to a fly-in today with my two sons (aged 1 and 2) and two adult
coworkers. My buddies want to pay their fair share, but as I private
pilot I am obviously limited under FAR 61.118 as to what I can accept.
So, what share of the direct costs should I take from each coworker?
33%? 20%? Or their weight divided by the total weight of all pax?