Tawstir Corporation has 500 obsolete personal computers that are carried m inventory at a total cost of $720,000 If these computers are upgraded at a total cost of $170,000. they can be sold for a total of $230,000. As an alternative, the computers can be sold in their present condition for $50,000 What is the net advantage or disadvantage to the company from upgrading the computers rather than seling them m their present condition