No, it shouldn't be 0%. Let's say you own 50% of a business with one other person. You and your partner agree to split the profits and losses 50 - 50. Your initial profit % is 50%. Next let's say you the two of you decide since he does twice as much work as you, that you will split the profits 60 - 40, with your partner getting 60%. Your final profit % for the year is 40%.