Financial information relating to the production and sale of Mountain Company's only product is shown below Selling price $22 Units in beginning inventory Units produced Units sold Units in ending inventory Variable costs per unit 400,000 350,000 50,000 Direct materials Direct labor Variable manufacturing $8 $6 overhead $3 Variable selling and iadministrative Fixed costs overhead administrative Fixed manufacturing $600,000 Fixed selling and $400,000 Total contribution margin under variable costing is