On 1 Jul 2020. Eileen, a small-scale trading company, has made a deal with a local dental clinic to supply dental floss products. Eileen was very excited since this clinic has various branches in the state whereby, she could anticipate a bigger volume of orders from this clinic. Since Eileen is a new supplier to this dental clinic, they have come to an agreement whereby Eileen will supply 120 units of dental floss per month for an agreed selling price of RM16 per unit commencing July 2020. This agreement is only for 1 year. Eileen will incur additional costs in the form of distribution expenses of RM 20 for each delivery to the clinic. To satisfy the agreement, Eileen had bought the dental floss as follows: Date Jul 2020 Sep 2020 Nov 2020 Feb 2021 May 2021 Quantity (unit) 400 450 400 270 180 Unit Cost (RM) 12 14 17 15 14 It has been the industry practice to value their inventories using the weighted average method. Hence, as a newcomer in this business venture, Eileen follows the industry practice. Required: (a) Calculate the value of dental floss inventory on 30 June 2021 using the perpetual method. (Show your calculations to the nearest 2 decimal places). (14 marks) (b) Calculate the gross profit or gross loss for the year ending 30 June 2021. (4 marks) [Total: 18 marks]