15. (15 points) Portland Inc. (PI) has developed standard costs for direct materials and direct labor. For the current year PI estimated the following costs for one of their major products, the PI22:

Standard Quantity	Standard Price
Direct Materials	0.25 pounds per unit	$25 per pound
Direct Labor	0.70 hours per unit	$15 per hour
Units	30,000

PI's actual results for the year were production and sales of 33,500 units using 8,100 pounds of direct materials for a total material cost of $216,675 and direct manufacturing labor cost was $13 per hour for a total direct labor cost of $341,250.

a. Calculate a full analysis of the direct materials price, efficiency, and flexible budget variances.

b. Calculate a full analysis of the direct labor price, efficiency, and flexible budget variances.

c. Comment on possible causes of the direct labor price and efficiency variances. Focus on causes of the variance NOT repeating financial results from your analysis above.