The Clarkson Company produces engine parts for car manufacturers. For 2015, The company expected to produce and sell 400 units for 2,000$ each .the standard cost of direct materials allowed for each unit of engine part was $1,200 (10Kg at $120per Kg) During 2015, actual number of units produced and sold was 370 for $2,200 each. Actual cost of direct materials used was 12 Kg per unit purchased at $110 per Kg. Required 1-calculate sales volume and flexible budget variances for the sales revenues 2-calculate the sales volume and flexible budget variances for the direct material 3-caculate price and efficiency variances for the direct material 4-give two possible reasons for direct material efficiency variance