Lucia Company has set the following standard cost per unit for direct materials and direct labor.

Direct materials $(15$ pounds @ $$3$ per pound$)$ $ $45$

Direct labor $(4$ hours @ $$15$ per hour$)60$

During May the company incurred the following actual costs to produce $8,300$ units.

Direct materials $(126,600$ pounds @ $$2\mathrm{.}80$ per pound$)$ $ $354,480$

Direct labor $(37,100$ hours @ $$15\mathrm{.}10$ per hour$)560,210$

AR $=$ Actual Rate

SR $=$ Standard Rate

AQ $=$ Actual Quantity

SQ $=$ Standard Quantity

AP $=$ Actual Price

SP $=$ Standard Price

AH $=$ Actual Hours

SH $=$ Standard Hours

$(1)$ Compute the direct materials price and quantity variances.

$(2)$ Compute the direct labor rate variance and the direct labor efficiency variance.