Bravo Baking uses standard costing to analyze its performance. The data below is provided for your use in determining Bravo's Material cost (ingredients) ( .5 lbs): Cost/unit = $2.29, Amount/unit = .5 lbs, Standard cost = $4.58 Direct labor: Cost/unit $2.25, Amount/unit .25 hrs, Standard cost $9 During the month, Bravo sold 9000 loaves of bread and used 4650 pounds of ingredients. Also during the month, Bravo purchased 5000 pounds of ingredients at a cost of $22,500. Employes worked a total of 2200 hours and actual labor cost were $19,998 Compute the following Material price variance Material quantity variance Labor rate variance Labor efficiency variance