Bellingham Company produced 6,900 units of product that required 4 standard direct labor hours per unit. The standard variable overhead cost per unit is $5.60 per direct labor hour. The actual variable factory overhead was $158,890. Determine the variable factory overhead controllable variance. Enter a favorable variance as a negative number using a minus sign and an unfavorable variance as a positive number. $fill in the blank 1 , favorable/unfavourable