Homespun Company manufactures pillows. The 2020 operating budget was based on production of 21,000 pillows, with 0.25 machine-hours allowed per pillow. Budgeted variable overhead per hour was $22. Actual production for 2020 was 20,000 pillows using 4,800 machine-hours. Actual variable costs were $25 per machine-hour. Calculate the following: a. The budgeted variable overhead for 2020 b. The variable overhead spending variance c. The variable overhead efficiency variance