Calculate the fixed overhead volume variance for the period and state whether it is favourable or unfavourable

Kingbird Company applies overhead based on direct labour hours. Two direct labour hours are required for each unit of product. Planned production for the period was set at 8,800 units. Manufacturing overhead is budgeted at $132,000 for the period ( 20% of this cost is fixed). The 16,800 hours worked during the period resulted in the production of 8,210 units. The variable manufacturing overhead cost incurred was $106,700 and the fixed manufacturing overhead cost was $28,300