This text discusses the financial decision making process for Richside Industries, including the computation of net present value and weighted average cost of capital. It covers aspects such as sunk costs, depreciation charges, and the exclusion of certain expenses. The text also provides a step-by-step guide to computing the cost of equity and post-tax cost of debentures, as well as the weights of various sources of capital. Finally, it concludes with the computation of the before tax interest on a mortgage loan.