Solution:
The operating cashflow (OCF), applies to the cash generated by the company from either the revenues it creates excluding long-capital or securities investments.
Operating cash flow is defined by the International Financial Accounting standards when cash produced from transactions, which is less tax and much less interest paid, income from investments and less dividend payments.
OCF {[(849 - $314) x 7,500] - $647,000} {1 - 0.21} + ($187,000 x 0.21)
= {4,012,500- $647,000}[0.79}+39,270
= $1,986,675