Tawstir Corporation has 500 obsolete personal computers that are carried in 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 o $50,000. What is the net advantage or disadvantage to the company from upgrading the computers rather than selling them in their present condition? O $60,000 advantage $180,000 advantage O $730,000 disadvantage S10,000 advantage