If accounting profits for a firm are 20% of output, and the opportunity cost of financial capital is 8% of output, then what do the firm's economic profits equal

Based on the information given the firm's economic profits equal 12%  of output.

Using this formula

Economic profit=Accounting profit - Opportunity cost

Where:

Accounting profit=20%

Opportunity cos=8%

Let plug in the formula

Economic profit= 20% - 8%

Economic profit= 12%

Inconclusion the firm's economic profits equal 12%  of output.

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12%

Explanation:

The Economic profits for a firm refers to the revenue received less all implicit and explicit costs.

The implicit costs would be all the costs associated with the inputs into the goods sold and explicit costs will be the opportunity cost.

Accounting profits already account for implicit costs so the formula for Economic profit is;

= Accounting profit - Opportunity cost

= 20% - 8%

= 12%