Regal Manufacturers uses the weighted average cost method for all issues and inventory valuation of materials . The table below shows the purchases and issues to production during March 2018 Purchases Issues Balance Date Quantity Price Amount Quantity Price Amount Quantity Price Amount 01 600 R60 R36 000 400 16 800 R62 R49 600 19 700 26 300 R64 R19 200 2.2 REQUIRED Use the information given below to calculate the following in respect of the project : 2.2.1 Schedule variance 3 marks ) 2.2.2 Cost performance index (3 marks ) 2.2.3 Estimate to complete (3 marks ) INFORMATION The following information is available for a project undertaken by Intel Limited Planned value R216 000 Earned value R252 720 Actual cost R280 800 Budget at completion R972 000