Dawson Toys, Limited, produces a toy called the Maze. The company has recently created a standard cost system to help control costs and has established the following standards for the Maze toy:

Direct materials: $7$ microns per toy at $$0\mathrm{.}31$ per micron

Direct labor: $1\mathrm{.}5$ hours per toy at $$7\mathrm{.}40$ per hour

During July, the company produced $4,800$ Maze toys. The toy's production data for the month are as follows:

Direct materials: $70,000$ microns were purchased at a cost of $$0\mathrm{.}27$ per micron. $28,000$ of these microns were still in inventory at the end of the month.

Direct labor: $7,800$ direct labor$-$hours were worked at a cost of $$62,400.$

Required:

$1.$ Compute the following variances for July: $($Indicate the effect of each variance by selecting $"$F$"$ for favorable, $"$U$"$ for unfavorable, and "None" for no effect $($i$.$e$.,$ zero variance$).$ Input all amounts as positive values. Do not round intermediate calculations. Round final answers to the nearest whole dollar amount.$)$

a$.$ The materials price and quantity variances.

b$.$ The labor rate and efficiency variances.