TCGY Ltd. reports the following data for 20X8: Plan assets, at fair value Balance, 1 January $439,800 Balance, 31 December $425,700 Defined benefit obligation Balance, 1 January $ 601,790 Balance, 31 December $720,500 The company has a contributory defined benefit pension plan covering all employees over the age of 30. Required: 1. How much did the pension plan assets change during the year? Name three items that would cause plan assets to change. 2. How much did the defined benefit obligation increase during the year? Name five items that would cause this amount to change. 3. Compute the amount of the underfunded (overfunded) net position of the pension plan for accounting purposes at the beginning and the end of the year. Explain what these amounts mean