On 1 Januarv 2023. Bob Teo set un Safe Pte Ltd to manufacture and sell face masks. He help to review the statement. To help you in your review, Bob Teo has also provided the following additional information: (i) The factory occupies 80% of the rented building, the sales area 15% and the administration area 5%. (ii) All the company's non-current assets are estimated to have a useful life of 5 years and no salvage value at the end of their useful life. (iii) Bob Teo spends 50% of his time as factory manager and the remaining time equally on sales and general administration. (iv) Electricity \& utilities costs are consumed almost entirely by the factory. (v) Cleaning costs are to be allocated to factory, sales and general administration based on the areas occupied. At 31 December 2023, the following inventories existed: Required: (a) Based on the information provided, determine the following: (i) Direct material used. (ii) Total manufacturing cost. (iii) Cost of goods manufactured. (iv) Cost of goods sold. (v) Gross profit. (vi) Sales and administrative expenses. (vii) Net profit. Show all workings