Projection of sales and income below the breakeven point and two above it

The attached is probably what you're looking for.

To change the 'above or below' breakeven points (50% of breakeven or 200% of breakeven etc) just enter new values in the appropriate cells in row 28.

FYI- I first ensured that the formulae for Net profit, sales revenue etc were entered. Then I focussed on the breakeven column. I used the 'Tools |Goal seek...' menu item to calculate breakeven sales. I set the value of profit (cell D41) to 0 by changing cell D30 in order to calculate the breakeven point. Then I simply entered formulae in cells C30, E30 and F30 to calcualte units sold relative to the breakeven unit sales.