7. Doug and Bob's Market has sales of $36,600, costs of $28,400, depreciation expense of $3,100, earnings before interest and taxes of $5100, interest expense of $1,500, pays $1,224 in taxes, and the firm's net income is $2,376. What is the operating cash flow (OCF) for the firm? a) $776 b) $5,279 c) $6,466 d) $6,976 e) $9,424