Budgeting and Variance Analysis for Variable Overhead Costs with Standard Hours and Efficiency Variance: A company prepares a flexible budget for variable overhead costs based on the following information:

Budgeted standard machine hours: 6,000 hours

Variable overhead rate per machine hour: $5

During the period, actual machine hours worked were 5,800, and actual variable overhead costs incurred were $28,000. Calculate the variable overhead spending variance and variable overhead efficiency variance.