Melrose Incorporated uses standard costing. Last period, the direct labor rate variance was $5,800 favorable, and the direct labor efficiency variance was $9,200 unfavorable. n the end-of-period adjusting journal entries to eliminate the variances, the amount debited/credited to Cost of Goods Sold would be a: Multiple Choice net debit adjustment of $1,400. net credit adjustment of $200. debit for $4,840. credit for $6,160