The sales and cost data for two companies in the transportation industry are as follows: Sales Variable costs Contribution margin Fixed costs Operating income (NB) X Company Amount Percent $158,000 100.00 94,800 60.00 63,200 40.00 34,400 $ 28,800 Y Company Amount Percent $158,000 100.00 47,400 30.00 110,600 70.00 70,450 $ 40, 150 X Company's degree of operating leverage (DOL) at the current sales volume level is calculated to be Multiple Choice 2.19 3.00 5.00 4.00 1.00