Use that information to determine a total cost of buying given a fixed cost of 1,000. Be able to change the number of items you want to purchase. 

Use the break-even point calculation.

ERP Software #1 S Software Price Variable Cost Cost per item 12,225 1,000 13.225 $ Broadway Caf Break-Even Point Cost per item $ 13,225 Number of Items bought Total Purchase Cost $ Fixed Cost S 1,000 Total Cost Overall fix cost per item= number of items = total fix cost = Break-even point ERP Software #1 S Software Price Variable Cost Cost per item 12,225 1,000 13.225 $ Broadway Caf Break-Even Point Cost per item $ 13,225 Number of Items bought Total Purchase Cost $ Fixed Cost S 1,000 Total Cost Overall fix cost per item= number of items = total fix cost = Break-even point