Delos, Inc. reports the following information for​ April: Sigma Gamma Units sold 2 comma 000 units 800 units Sales price per unit $ 350 $ 800 Variable manufacturing cost per unit 175 460 Sales commission per​ unit: ​Sigma: 4​% of sales price 14 ​Gamma: 6​% of sales price 48 What is the contribution margin of​ Sigma? A. $ 262 comma 000 B. $ 350 comma 000 C. $ 672 comma 000 D. $ 322 comma 000