could someone help me with this step by step by step?

Cordova manufactures three types of stained glass window, cleverly named Products A, B, and C. Information about these products follows: Sales price Variable costs per unit Fixed costs per unit Required number of labor hours Product A $42.00 19.20 4.00 1.50 Product B $52.00 13.25 4.00 2.50 Product C $82.00 35.20 4.00 3.00 Cordova currently is limited to 45,000 labor hours per month Required: Assuming an infinite demand for each of Cordova's products, determine contribution margin per direct labor hour. (Round your answers to 2 decimal places.) Contribution Margin Product A Product B CM per DL hour CM per DL hour CM per DL hour Product Which product would be Cordova's first choice to produce? O Product B Product A O Product