ABC Company makes a product that has a $10 sales price and $4 of variable costs . It has just found out that its fixed cost will be decreasing by $ 1, 000 per month . If there are no other changes in demand or cost structure , what is the change in breakeven sales in units that the company will have ? a. break even sales in some units will decrease by 1500 units b. break even sales in units will not change c. break even sales will decrease by 1000 units d. break even sales will increase by 1000 units