can you please walk me thru the steps on this?

15. (8 points) HDV Company manufactures video filming equipment. HDV's most popular product , the HDV52 sells for $1,400 per unit. Costs per unit associated with the HDV52 are as follows: Direct materials $ 420 / unit Direct manufacturing labor 350/unit Variable manufacturing overhead 140 / unit Fixed manufacturing overhead $ 200,000 Variable marketing 50 / unit Administrative salaries $ 42,000 a What is the current breakeven point in number of units? b. Calculate the amount of Sales needed to earn the target operating income of $22,000? c. If HDV Co. pays taxes at a 20% tax rate, how many units must be sold to generate Net Income of $26.400