pls show workings,thanks

Fill in the table using the following information: The Faculty of Arts has just bought 200 new computers at a total cost (including installation) of $200,000. The school expects them to last 4 years before they will need to be replaced and expects to sell them for $50,000 after the four years. The computers are considered Class 10 or 30 percent for CCA purposes. Year Beginning UCC CCA Ending UCC