Use the information provided below to calculate the Cost of sales for 2023. (5 marks) INFORMATION Oyster Manufacturers had an inventory of 30 000 units of Product B (at a production cost of R11 per unit) on 01 January 2023. An additional 600 000 units are expected to be produced during 2023. The unit production cost of Product B is expected to be R12 per unit during 2023. An inventory of 45 000 units is expected on 31 December 2023. The first-in-first-out method of valuing inventories is used