How much will profits increase for every unit sold over the break-even point?

How much will profits increase for every unit sold over the break-even point?
The gross margin of the unit

brake even point equation

There was no profit until the break even was reached.
Going forward from the break even point, profit per unit is the Sale Price per unit less Variable Cost per unit.
This is often close to the Gross Margin, but not necessarily. COGS does not necessarily equal variable cost.

Formula