Ben’s Bagels charges $10 per dozen bagels and he sells 30 dozen bagels each day….

Ben’s Bagels charges $10 per dozen bagels and he sells 30 dozen bagels each day. Ben’s costs of production total $150 each day. Ben recently quit his job where he earns $100 per day in order to open his bagel store.
Ben’s accounting profit per day would be __________.
$300
$50
$150
$450