Explain the importance of operating profit margins, EBIT and NOPAT for fundamental analysis (in general) and discounted

Question:

Explain the importance of operating profit margins, EBIT and NOPAT for fundamental analysis (in general) and discounted analysis (more specifically).
Free Cash Flow
Free cash flow (FCF) represents the cash a company generates after accounting for cash outflows to support operations and maintain its capital assets. Unlike earnings or net income, free cash flow is a measure of profitability that excludes the...