100 Illustration 4 The standard material input required for 1,000 kgs. of a finished product are given below: Material Quantity (Kg.) St. Rate per kg. ) P 450 20 Q 400 40 R 250 60 1,100 Standard loss Standard output 1.000 Actual production in a period was 20,000 kg. of finished product for which the actual quantities of material used and the prices paid therefore were as under: Material Quantity (kg) Purchase price per kg.) P 10,000 19 a 8,500 42 R 4,500 65 Calculate: Material cost variance; (1) Material price variance; (1) Material usage variance; and fiw) Material yield variance. 60 Also show a reconciliation of the variances