P13–16 Integrative: Leverage and risk Firm R has sales of 100,000 units at $2.00 per unit, variable operating costs of $1.70 per unit, and fixed operating costs of $6,000. Interest is $10,000 per year. Firm W has sales of 100,000 units at $2.50 per unit, variable operating costs of $1.00 per unit, and fixed operating costs of $62,500. Interest is $17,500 per year. Assume that both firms are in the 40% tax bracket.

a. Compute the degree of operating, financial, and total leverage for firm R. 

b. Compute the degree of operating, financial, and total leverage for firm W.

c. Compare the relative risks of the two firms.

d. Discuss the principles of leverage that your answers illustrate.