Lewis Company's standard labor cost of producing one unit of Product DD is $3\mathrm{.}90$ hours at the rate of $$10\mathrm{.}00$ per hour. During August, $41,200$ hours of labor are incurred at a cost of $$10\mathrm{.}20$ per hour to produce $10,500$ units of Product DD$.$

$($a$)$

Compute the total labor variance.

Total labor variance $$||$

Favorable

$($b$)$

Compute the labor price and quantity variances.

Labor price variance

s $$

$q,$

Sbor quantity variance

$ $$