2 Broke Girls rant

I watched all of season 1 and by the end of it they said they had put 8 months into the cupcake business, my question is, why the hell does the diner salary, and Max's baby sitting job money get added to the fund? They illegally sublett the apartment, so no rent and, groceries money gets reduced from the fund. Where the hell is the salary money?????? Also why do they never try to sell the coats and fur, or the shoes? As someone who actually studied in finance, Caroline is a failure at it. The writers should have made her be more knowledgeable especially since she has a degree in finance.