ABN Corp. has the following information about its standards and production activity in May:

Total factory overhead costs incurred:
Variable overhead	$	55,000
Fixed overhead		40,000
Standard factory overhead rate:
Variable overhead	$	4.00	per unit
Fixed overhead		3.40	per unit
Denominator activity level (in units)		13,700
Actual units produced		14,000

Required: Calculate and show underlying calculations for each of the following variances: 1. Variable overhead flexible-budget (FB) variance, to the nearest whole dollar. 2. Fixed overhead spending variance, to the nearest whole dollar. 3. Fixed overhead production volume variance, to the nearest whole dollar. 4. Provide a short discussion/interpretation of each of the above-three variances.