Marcie quit her job as a preschool teacher, which paid an annual salary of $28,000, and became a street food vendor. She used $8,000 out of her savings account that paid a 4% annual interest rate to buy a street cart to sell food. In her first year of operations, she spent $10,000 on food and supplies (napkins, cups, plates, etc.) and earned total revenue of $45,000. Marcie's accounting profit is $