Regent Corporation uses a standard cost system to account for the costs of its one product. Materials standards are 3 pounds of material at $14.00 per pound, and labor standards are 9 hours of labor at a standard wage rate of $10.5. During July. Regent Corporation produced 3,050 units. Materials purchased and used totaled 10,600 pounds at a total cost of $143,213. Payroll totaled $151,780 for 38,150 hours worked. Required: o. Calculate the direct materials price variance. Note: Do not round your Intermedlete calculations. Indleate the effect of varlance by selecting "Favorable", "Unfavorable", or "None" for no effect (l.e., zero varlence). b. Calculate the direct materials quantity variance. Note: Indleate the effect of varlance by selecting "Favorable", "Unfovorable", or "None" for no effect (l.e., zero varlance). c. Calculate the direct materials spending variance. Note: Indleate the effect of varlance by selecting "Favorable", "Unfovorable", or "None" for no effect (l.e., zero vorlance)