Corey has a mountain bike worth $300, a credit card debt of $150, $200 in cash, a Sandy Koufax baseball card worth $400, $1,200 in a checking account, and an electric bill due for $250. Construct Corey's balance sheet and calculate his net worth. For each remaining part, explain how the event affects Corey's assets, liabilities, and wealth.
What is Corey's net worth?