When the customer is hemming and hawing, how often have you said "Alright, because I like you I'm going to cut you a break ..." It often works to close the sale, but have you just given away more than you can afford? In this latest installment of "Do the Math," Sal Alfano builds on his previous video blog to show how much business you have to sell to recoup the money you just gave away.  Watch now.