Direct labor variances

The following data relate to labor cost for production of $6,200$ cellular telephones:

Actual: $4,170hrs,$ at $$14\mathrm{.}10$

Standard: $4,100$ hrs$.$ at $$14\mathrm{.}30$

a$.$ Determine the direct labor rate variance, direct labor time variance, and total direct labor cost variance. Enter a favorable variance as a negative number using a minus sign and an unfavorable variance as a positive number.

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