Compuwatch Inc. produces wrist-worn tablet computers. The company uses Thin Flim Crystal (TFC) LCD displays for its products. Each tablet uses one display. The company produced 450 tablets during December. However, due to LCD defects, the company actually used 500 LCD displays during December. Each displey has a standard cost of $6.00. 500 LCD displays were purchesed for December production ot a cast of $3,150. Determine the price variance, quantity variance, and total direct materials cost variance for December, Enter a fovorable variance as a negative number using a minus sign and an unfavorable variance as a positive number. And, enter your final variance amounts to the nearest whole dollar