Sam's Shingle Corporation is considering the purchase of a new automated shingle-cutting machine. The new machine will reduce variable labor costs but will increase depreciation expense. Contribution margin is expected to change from exist303, 660 to exist342, 220. Net income is expected to be the same at exist48, 200. Compute the degree of operating leverage before and after the purchase of the new equipment.(Round answers to 1 decimal place, e.g. 1.5) Degree of operating leverage (old) Degree of operating leverage (new)