Ever-Sharp Lawnmowers Ltd. controls variable manufacturing overhead costs with assembly-line hours as the denominator. Fixed manufacturing overhead costs are applied on a unit-of-output basis. Each lawnmower is allowed 10 assembly-line hours and standard variable manufacturing overhead totals $650 per unit. Budgeted fixed manufacturing overhead totals $29,400 for 420 lawnmowers. During July 4,200 assembly-line hours were incurred and 400 lawnmowers were produced. Actual manufacturing overhead costs for July were $260,400 for variable expenses and $32,300 for fixed expenses.

Required:

a. Compute a 4-variance analysis for the month of July.

b. Compute a 3-variance analysis for the month of July.

c. Compute a 2-variance analysis for the month of July.