CCA Calculations

Staple Supply Ltd$.$ has just purchased a new computerized information system with an installed cost of $$160,000.$ Suppose the computer qualifies for a CCA rate of $45\%.$ What are the yearly CCAs? Based on historical experience, we think that the system will be worth. only $$5,000$ when we get rid of it in four years. What will be the tax consequences of the sale if the company has several other computers still in use in four years? Now suppose that Staple Supply will sell all its assets and wind up the company in four years.