The table below provides the annual revenues and costs for a family-owned firm producing catered meals. Total Revenues (S) 500 000 Total Costs (S) wages and salaries 200 000 risk-free return of 6% on owners' capital of 250 000 15 000 rent 105 000 depreciation of capital equipment 25 000 - risk premium of 8% on owners' capital of 250 000 20 000 intermediate inputs 150 000 forgone wages of owners in alternative employment 80 000 interest on bank loan 10 000 TABLE 3 Refer to Table 3. The explicit costs for this family-owned firm are $605000