What is contribution margin here?

The percent of each revenue dollar left after variable costs. Enter it as a percent, not a dollar.

Why is revenue blank at 0% margin?

If nothing is left after variable costs, no amount of revenue covers fixed costs or profit.

Revenue & growth

Convert a profit goal and contribution margin into the revenue that would produce that profit under those assumptions.

Decision: How much revenue do I need to hit this profit target?

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Required revenue
Required revenue: $45,000.00
Required revenue of $45,000.00 is gross sales, not net profit and not cash flow. At 40% contribution margin it produces $18,000.00 of contribution, which equals fixed costs plus target profit ($12,000.00 + $6,000.00 = $18,000.00). No tax is calculated. This is not a forecast that the business will reach this revenue.
Contribution needed
Contribution needed: $18,000.00
Contribution recovered from gross revenue
Contribution recovered from gross revenue: $18,000.00

The revenue figure is the sales volume that matches the margin and profit you typed. It is not a forecast that you will reach it.

Totals and thresholds come only from the values on this page. They describe the math, not what you should do.

Risk, timing, customers, and judgment stay outside the calculator. A stronger number can still be the wrong path.

Contribution needed is fixed costs plus target profit. Required revenue is contribution needed ÷ (margin ÷ 100) when margin is positive.

$12,000 fixed costs and $6,000 profit at 40% contribution margin requires $45,000 revenue.

What is contribution margin here?: The percent of each revenue dollar left after variable costs. Enter it as a percent, not a dollar.
Why is revenue blank at 0% margin?: If nothing is left after variable costs, no amount of revenue covers fixed costs or profit.