Insi Ltd manufactures product J7524G and provides the following information for the last month: Budgeted figures: Variable manufacturing overheads R20 000 Fixed manufacturing overheads R48 000 Labour hours 4 000 Expected production 1 000 units Actual results: Variable manufacturing overheads R19 135 Fixed manufacturing overheads R49 880 Labour hours worked 4 300 Actual production 1 050 units Required: 1. Calculate the following variable manufacturing overheads variances (in Rands) and state if they are favourable or unfavourable: 1.1 Efficiency variance (5) 1.2 Expenditure variance (5) 1.3 Total variable overheads variance (4) 2. Calculate the following fixed manufacturing overhead overheads variances (in Rands) and state if they are favourable or unfavourable: 2.1 Expenditure variance (5) 2.2 Volume variance (4) 2.3 Total fixed overheads variance (2)