Question 4 of 4 The variable costs to manufacture a digital appliance are $290 per appliance and the selling price is $830 per appliance. The fixed costs are $43,290 per month. a. Calculate the contribution margin per appliance. Round to the nearest cent b. Calculate the number of appliances that need to be sold per month to break even. 1 Question 4 of 4 a. Calculate the contribution margin per appliance. Round to the nearest cent b. Calculate the number of appliances that need to be sold per month to break even. Round up to the next whole number