As of December 31, 2014, Post Company had total cash of $153,000, notes payable of $85,300, and common stock of $52,100. During 2015, Post earned $33,000 of cash revenue, paid $18,500 for cash expenses, and paid a $2,700 cash dividend to the stockholders.

Required

a.	Determine the amount of retained earnings as of December 31, 2014.