A project's, an individual's, an organization's, or other entities' cash flow is the inflow and outflow of cash or cash-equivalents. Positive cash flow, such as revenue or accounts receivable, indicates growth in liquid assets over time. Negative cash flow, on the other hand, indicates a reduction in liquid assets due to expenditures, rent, and taxes. Cash flow is often expressed as a net of the aggregate total of both positive and negative cash flows during a period, as the calculator does. Cash flow analysis gives a broad indicator of solvency; in general, having sufficient cash reserves is