The following data relate to direct labor costs for the current period:

Line Item Description Value

Standard costs $7,100$ hours at $$11\mathrm{.}50$

Actual costs $6,200$ hours at $$10\mathrm{.}30$

The direct labor rate variance is

a$.$ $$17,790$ unfavorable

b$.$ $$7,440$ favorable

c$.$ $$17,790$ favorable

d$.$ $$10,350$ favorable