This document discusses various concepts related to making capital investment decisions. It covers relevant cash flows, the stand-alone principle, situations involving incremental cash flows like sunk costs and opportunity costs. It also discusses net working capital, financing costs, pro forma financial statements, and calculating project cash flows. An example of evaluating a mulch and compost company project is provided to illustrate cash flow calculations. Different approaches for calculating operating cash flow like the bottom-up, top-down, and tax shield approaches are also explained.