If Financial Leverage Index increases over time:
An increasing Financial Leverage Index usually indicates the company is using its debt in a positive way, that as the company has taken on debt, the debt has been increasingly beneficial to the company.
If Financial Leverage Index decreases over time:
A decreasing Financial Leverage Index usually indicates the company is using its debt in a negative way, that as the company has taken on debt, the debt has been increasingly detrimental to the company.
If Financial Leverage Index stays the same over time:
An unchanged Financial Leverage Index usually indicates the way in which the company is using its debt has remained the same.