What is the best method of financial analysis of any company?

There are two key methods for analyzing financial statements. The first method is the use of horizontal and vertical analysis. Horizontal analysis is the comparison of financial information over a series of reporting periods, while vertical analysis is the proportional analysis of a financial statement, where each line item on a financial statement is listed as a percentage of another item.

For me I used KPI's Excel sheet to make a comparison and analysis data reports between our company and other competitors.