Answer:
-$10,000 ; is
Explanation:
The computation is shown below:
The economic profit is
= Revenues produced - labor, wages, materials, rent, and other explicit costs incurred - giving amount
= $150,000 - $120,000 - $40,000
= -$10,000
Now the normal profit is
= Total revenues produced - Total cost incurred
= $150,000 - $120,000
= $30,000
So, the economic profit is -$10,00 and he is earning a normal profit