Crystal Clear Sdn Bhd manufactures contact lens and maintains its stock using perpetual inventory control system. One of the components used in producing contact lens is plastic polymer. The business requires 2 (two) units of plastic polymer for every unit of contact lens. The company keeps its inventory based on First in First Out (FIFO) method. On 1 January 2021, the company had stock of 500 units, of which 300 units were bought at RM 15.50 per unit on 10 December 2020. Balance of the opening stock valued at RM 16 per unit were bought on 28 December 2020. Physical stock count of plastic polymer carried out on 31 January 2021 finds out to have 450 units of plastic polymer in balance. The following transactions for the plastic polymer production are recorded in January 2021: Date January 6 January 14 January 18 Particulars Purchased 150 units of plastic polymer at RM 15 per unit. Issued 180 units of material from store department. Issued plastic polymer to production department to make 100 units of contact lens January 22 Purchased 300 units of plastic polymer at RM 16.50 per unit. January 26 Returned 80 units of plastic polymer to the supplier due to wrong material coding received during the most recent purchases. Required: 1. How much the value of opening stock balances for plastic polymer on 1 January 2021? (2 marks) (2 marks) 2. Calculate the net receipt of plastic polymer for the month of January 2021. 3. Calculate the cost of plastic polymer issued by store department to production for the month of January 2021. (2 marks) 4. How much is the value of stock loss of plastic polymer for the month of January 2021? (if any) (2marks) 5. How much the value of closing stock of plastic polymer at the end of January 2021? (2 marks)