9th attempt A driver of an ice cream truck paid $10,000 for a nonrefundable lease on the truck for a year, from January to has driven from January through October, and needs to decide whether to continue working or to shut down months. If the driver continues working, he could sell 1,000 ice cream bars per month, at the market price of $2 per ice would cost $5 per gallon, and he would need to purchase 300 gallons per month. The ice cream inventory woul bar. What would be the difference between the additional revenue and variable cost of the 2,000 additional ice cream bars he could sell if he continues operations