Homework question is for: The following is balance sheet information for Lynch Janitorial Service, Inc., at the end of 2016 and 2015: With this problem, how do you calculate 2015 retained earnings when the problem doesn't give you brought forward information or net income information? In other words, how was the $84,000 2015 retained earnings calculated?

Expert answer says they need more info. I am confused, can expert see the question I am referring to for Lynch Janitorial Service?