Huron Company produces a commercial cleaning compound known as Zoom. The direct materials and direct labor standards for one unit of Zoom are given below:

Standard Quantity or Hours Standard Price or Rate Standard Cost

Direct materials $4\mathrm{.}6$ pounds $ $2\mathrm{.}50$ per pound $ $11\mathrm{.}50$

Direct labor $0\mathrm{.}2$ hours $ $18\mathrm{.}00$ per hour $ $3\mathrm{.}60$

During the most recent month, the following activity was recorded:

Twenty thousand pounds of material were purchased at a cost of $$2\mathrm{.}35$ per pound.

All of the material purchased was used to produce $4,000$ units of Zoom.

$750$ hours of direct labor time were recorded at a total labor cost of $$14,925.$

Required:

$1.$ Compute the materials price and quantity variances for the month.

$2.$ Compute the labor rate and efficiency variances for the month.