The Punggol branch of Utopia Credit Bank is a retail branch serving the rapidly glowing new town. To support its services, the branch employs 7 tellers, 3 retail executives and a branch manager. The cost data for the last year is as follows: Teller wages $175,000 Retail executives salary and benefits 120,000 Manager salary and benefits 80,000 Other bank costs 250,000 Total $625,000 These costs are related to the three major activities performed by the bank: (i) Process new accounts; (ii) Process deposits and withdrawals; (iii) Process other transactions. None of the above cost can be easily traced to specific customers. The work distribution matrix is shown below: The actual activity cost driver levels for the Punggol Branch last year were: The Head Office has just published the lowest activity costs among all branches: Required: (a) Apply an activity based costing system and determine the cost of each of the three major activities conducted at the Punggol branch. (b) Calculate the cost per driver unit for each activity for the Punggol branch. (c) Compare and comment on the results of the Punggol branch with that published by the Head Office