Cash flow is the amount of liquid money ("cash") produced by the work of a company or investor. For example, a landlord who rents his house to a tenant for $1000 per month has monthly cash flow. Operating cash flow is calculated by taking the raw earnings and adding depreciation (which is actually a negative number), and then subtracting taxes. This website has lots of information about the
. subject: http://www.ehow.com/how_4420972_calculate-operating-cash-flow.html. Cash flow and profit are not the same thing, as profit is a measurement of the amount of money left after all expenses are paid.