please help with both parts

Information for two companies follows: (1) Compute the degree of operating leverage (DOL) for each company. (2) Which company is expected to produce a greater percent increase in income from a 20% increase in sales? Complete this question by entering your answers in the tabs below. Compute the degree of operating leverage (DOL) for each company. Information for two companies follows: (1) Compute the degree of operating leverage (DOL) for each company. (2) Which company is expected to produce a greater percent increase in income from a 20% increase in sales? Complete this question by entering your answers in the tabs below. Which company is expected to produce a greater percent increase in income from a 20% increase in sales