At the beginning of the year, Lopez Company had the following standard cost sheet for one of its chemical products:

Direct materials (4lbs @ $2.80)	$11.20
Direct Labor (2 hrs @ $18.00)	$36.00
FOH (2 hrs @ $5.20)	$10.40
VOH (2 hrs @ $0.70)	$1.40
Standard Cost per Unit	$59.00

Lopez computes its overhead rates using practical volume, which is 90,000 units. The actual results for the year are as follows: (a) Units produced: 88,000; (b) Direct labor: 170,000 hours at $18.10; (c) FOH: $930,000; and (d) VOH: $125,000.

Required:

1. Compute the variable overhead spending and efficiency variances.
2. Compute the fixed overhead spending and volume variances.