1.A store has fixed costs of 80,000 and an avarage gross margin of 26%. Variable expenses are estimated to be 6% of sales.

a.calculate the break-even sales volume.
b.calculate the profit/losses for sales of 300,000

I got the formulas:
unit contribution= price - variable costs
break even point= fixed costs/ unit contribution
profit/loss= sales revenue -varible cost- fixed costs

I don't know how to plug the numbers in..?