Joseph Giovine owns a successful hole-in-the-wall bagel shop called Peach Tree Bagels. Joseph wants to expand the shop by leasing the space next door for $1,000 per month and adding tables and chairs so that customers can dine in. He figures that the tables and chairs will cost $5,000 and that the bagel machine, which cost $4,500 five years ago, will have to be scrapped in favour of a larger machine costing $7,400. He thinks sales will increase by $5,500 per month. Variable costs are 55% of sales.

A.	What are the relevant costs and benefits of expanding into the new space?
B.	What are the irrelevant costs and benefits of expanding into the new space?