The manager of Calypso, Inc. is considering raising its current price of $30 per unit by 10%. If she does so, she estimates that demand will decrease by 20,000 units per month. Calypso currently sells 50,000 units per month, each of which costs $25 in variable costs. Fixed costs are $180,000. Assume the manager does not know how much demand will drop if the price increases. By how much would demand have to drop before the manager would not want to implement the price increase? A. 18,750 B. 18,900 C. 19,000 OD. 2,000