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

Prepare contribution margin income statements for each of the three separate

cases below. $($Click on the Part $1,$ Part $2$ and Part $3$ Tabs below.$)$

Required:

The $10,000$ units sold and produced increases to $10,400$ units and fixed

costs increase by $$5,000.$

Unit selling price decreases by $5\%$ and units sold and produced

increase by $8\%.$ Hint: A unit increase has both a sales and costs impact.

Fixed costs increase by $$20,000,$ variable costs per unit decrease by $$2,$

and units sold and produced increase by $500.$

enter formulas using reference cells not numerical values