Answer:
$-2000
Step-by-step explanation:
Economic profit = accounting profit - opportunity cost
Opportunity cost is the cost of the next best option forgone when one alternative is chosen over other alternatives.
if i hadn't quit my job, i would be earning $30,000. so, $30,000 is one of my opportunity costs.
also, if i hadn't started my business, i would be earning 0.1 x $70,000 = $7,000 on my capital. this is my second opportunity cost.
total opportunity cost = $7,000 + $30,000 = $37,000
economic profit = $35,000 - $37,000 = $-2000