Lourien Ltd operates a standard costing system. Its budget for the month was $ 462 000 Sales (22 000 units at $21) Direct materials (28 600 kilos at $2) Direct labour (48 400 hours at $6) Contribution 57 200 290 400 347 600 114 400 $ $ 445 120 Actual results for the month were Sales (21 400 units at $20.80) Direct materials (28 400 kilos at $2.05) Direct labour (47 200 hours at $5.90) Contribution 58 220 278 480 336 700 108 420 REQUIRED: (a) Calculate the following variances () sales volume (ii) sales price (iii) total sales (iv) direct materials usage (v) direct materials price (vi)total direct materials (vii) labour efficiency (viii) labour rate (ix)total labour [2] [2] [2] [2] [2] [2] [2] [2] [2]