$2$ Need excel formulas

A manufacturer's contribution margin income statement for the year follows.

$3$

$4$ Sales $($ $$10$ per unit $10,000$ units$)$

$5$ Variable costs

$6$ Contribution margin

$7$ Fixed costs

$8$ Income

$9$

$10$

$11$

Required:

$15$ Prepare a contribution margin income statement if the number of units

$16$ sold $($a$)$ increases by $200$ units and $($b$)$ decreases by $200$ units.

$17$

$18$ Contribution Margin Income Statement

$21$ Sales

$22$ Variable costs

$23$ Contribution margin

$24$ Fixed costs

$25$ Income

$26$