Exercise $18-22($Static$)$ CVP analysis with two products LO P$3$

Handy Home sells windows $(80\%$ of sales$)$ and doors $(20\%$ of sales$).$ The selling price of each window is $$200$ and of each door is $$500.$ The variable cost of each window is $$125$ and of each door is $$350.$ Fixed costs are $$720,000.$