Answer:
Flexible budget cost variance= $6,400 unfavorable
Step-by-step explanation:
To calculate the flexible budget cost variance, we need to use the following formula:
Flexible budget cost variance= (standard costs*actual quantity) - actual costs
Flexible budget cost variance= (6*27,500) - 171,400
Flexible budget cost variance= 165,000 - 171,400
Flexible budget cost variance= $6,400 unfavorable