Cash Flow

The movement of money into or out at each time points over the whole time period.

Cash Inflow (CI, 现金流入量): 

Operating Revenue

Cash Outflow (CO, 现金流出量)

Capital Investment

Operating Cost

Financial Cost

Net Cash Flow (NC, 净现金流量): 

               NC = CI – CO

The “arrow up” is a kind of revenue whereas the “arrow down” is an expense.

All revenues & expenses are assumed to be occurred at the end of each period.

If the construction period is less than one year, the capital investment is assumed to be occurred at the beginning of first year.

If the construction period is more than one year, the annual capital investment is assumed to be occurred at the end of each year of the construction period.

Single Cash Flow

Uniform Series

Uneven Series

Linear Gradient

Geometric Gradient