B, 3 Silicone Engine Inc. produces wrist-worn tablet computers. The company uses Thin Film Crystal (TFC) LCD displays for its products. Each tablet uses one produced 580 tablets during December. However, due to LCD defects, the company actu- ally used 600 LCD displays during December. Each display has Six hundred LCD displays Determine the price variance, quantity variance, and total direct materials cost variance for December. display. The company standard cost of $15.00. a purchased for December production at a cost of $8,550. were