joining bankroll with friend, some problems

[billuhbong]

i just started sharing my bankroll with my friend so we could move up to higher stakes. he is contributing roughly 2000 and i am contributing 1100. Basically we are playing 8 tables of 5/10 and he is doing most of the workload. Hes playing 6 tables and Im gonna be playing 2. Can someone help me make a platform on how to split the profits and losses accordingly. what is a fair amount considering he is playing more and contributing more money?