Sunland Enterprises uses a computer to handle its sales invoices. Lately, business has been so good that it takes an extra three hours per night, plus every third Saturday, to keep up with the volume of sales invoices. Management is considering updating its computer with a faster model that would eliminate all of the overtime processing. Data for the two computers are as follows:

$\backslash$table$[[,$Current Computer,New Computer$],[$Original purchase cost,$$15,400,$$$24,900$