The Himaylan Salt Corp is planning to sell 1,000 units for $10.00 per unit and will break even at this level of sales. Fixed expenses will be $3,000. What are the company's variable expenses per unit? $6.00 $4.00 $7.00 $3.00 The following is Sales Variable expenses Contribution margin Fixed expenses Net operating income Total 10,000 5,000 5,000 2,000 3,000 $ What is total contribution margin if sales volume increases by 50%? $7,500 O $15,000 $5,000 O $4,500