Belle Auto Detailing reported the following results for the past weekil Actual number of cars detailed Actual direct labor hours used Actual total direct labor cost 420 $6.700 Budgeted number of cars to be detailed Standard direct labor cost per hour Standard direct labor per car 330 $6.05 What is Belle's direct labor rate variance? (Round intermediary calculations to two decimal places.) MALALA O A. $4,158 favorable O B. $4,158 unfavorable OC. $30,397 favorable OD. $30.397 unfavorable