Here, Z is your target service level, σLT is the standard deviation of your lead time, and D-avg is the average demand for a product. Net cash flow = total cash inflows total cash outflows.Learn how to use this formula and others to improve your understanding of your cash flow. Real estate excise tax (REET) is a tax on the sale of real property. Real property, or real estate, means any interest, estate, or beneficial interest in land. "Cash is king" is a slang term reflecting the belief that money (cash) is more valuable than any other form of investment tools, such as stocks or bonds. This property tax calculator will be updated annually to reflect the current year after the final tax rate is calculated. Age 62 is referred to as your "normal. The result is expressed as a percentage or a ratio. This contrasts with.