a company allocates overhead based on direct labor hours (dlh), using a standard amount of 3 dlh per unit produced. its standard overhead rate is $16 per dlh. the company produced 5,420 units this period, and its flexible budget at that activity level shows $63,950 in fixed overhead costs and $97,400 in variable overhead costs. compute the volume variance and identify it as favorable or unfavorable. note: indicate the effect of the variance by selecting favorable, unfavorable, or no variance.