I need help with this spread sheet.

1	Sales mix and breakeven sales
	The unit selling price, variable cost per unit, and contribution margin per unit for the company's two products are provided below.
	DATA
	Product	Selling price	Variable Cost per Unit	Contribution Margin per Unit	Sales Mix
	Digital TV	$150	$70		80%
	Digital Stereo	220	190		20%
	Fixed costs	$16,800,000
	Using formulas and cell references, perform the required analysis and input your answers into the green cells in the breakeven Sales column.
		Breakeven Units	Breakeven Sales Revenue
	Digital TV				js
	Digital Stereo
2	Sales mix and breakeven sales
	Just Boards Inc. (a fictitious company) manufactures and sells two products, Boogie Boards and Surf Boards. The fixed costs, the sales mix, the unit selling price and the unit variable cost for each product are as follows:
	DATA
	Products	Sales Mix	Unit Selling Price	Unit Variable Cost	Contribution Margin per Unit
	Boogie Boards	70%	$80	$50
	Surf Boards	30%	100	80
	Fixed costs	$326,700
	Using formulas and cell references, perform the required analysis and input your answers into the green cells in the Amount column.
		Amount
	a.	breakeven sales
	b.	Units of Boogie Boards sold at the breakeven point
		Units of Surf Boards sold at the breakeven point
3	Breakeven sales and sales to realize operating income
	For the current year ended March 31, Cosgrove Company expects fixed costs of $442,400, a unit variable cost of $57, and a unit selling price of $85.
	Compute the anticipated breakeven sales (units).		Compute the anticipated breakeven sales (dollars).
	Compute the sales (units) required to realize operating income of $100,800.
	Compute the sales (dollars) required to realize operating income of $100,800.