Beta Organization records show that there were 3,000 units of stock at the beginning of the current period with a total value of RM4,800. The following is a summary of the transactions of materials in the factory during January to June 2018. Jan 15 - Sold 2000 units at RM3.50 each February 23, Received 14,000 units at RM1.80 each March 4-Sold 7,000 units at RM2.00 each April 1 - Received 10,000 units at RM2.40 each May 19 - Received 8,000 units at RM1.50 each June 7 - Sold 18,000 units at RM4.00 each Calculate the value of closing stock using the weighted average method for pricing