Nelson company established the following standards for the single product that it manufactures. Standard Cost per Unit: Direct Material @ S 2 per kilo S 10 Direct Labor @ S 6 per hour S 12 Variable Overhead @ $ 3 per hour $ 6 During August 2020, Nelson company experienced the following production resource use and costs. Direct Material Used in Production was 34 000 kilos costing S71400. Direct Labor Hours used in production was 12 360 hours costing $74 778. Actual production 6 500 units Actual variable Overhead S 40 000 Required: 1.) Calculate variances for a.) Material price and quantity b.) Labor rate and efficiency c.) Variable overhead spending and efficiency. (12 marks) ii.) state one possible causes for the result in part i. (a). (2 marks)