What relevance does par value or stated value have to a financial ratio, such as return on

Question:

What relevance does or stated value have to a financial ratio, such as return on equity or debt to equity?

Par Value
Par value is the face value of a bond. Par value is important for a bond or fixed-income instrument because it determines its maturity value as well as the dollar value of coupon payments. The market price of a bond may be above or below par,...