The Marginal Cost of Capital $($MCC$)$ in accounting refers to the cost of obtaining additional funds for a company's investment projects. It represents the cost of raising one more dollar of capital. MCC is important in financial decision$-$making as it helps determine the feasibility and profitability of investment opportunities.

MCC is calculated by considering the cost of each component of capital, such as debt, equity, and preferred stock. The cost of debt is typically based on the interest rate paid on loans, while the cost of equity is determined by the expected return demanded by investors. The weights assigned to each component reflect their proportion in the company's capital structure.

By comparing the MCC to the expected return on investment, a company can assess whether the project will generate a return higher than the cost of capital. If the expected return is higher than the MCC$,$ the project is considered financially viable.

Now, here's an objective type question for you:

What does the Marginal Cost of Capital $($MCC$)$ help determine in financial decision$-$making?

A$)$ Feasibility and profitability of investment opportunities B$)$ Cost of obtaining additional funds C$)$ Expected return on investment D$)$ Proportion of debt and equity in the capital structure