Answer and Explanation:
a. The computation of the budget variance of the month of April is shown below:
= Actual fixed manufacturing overhead costs - budgeted fixed manufacturing overhead costs
= $249,900 - $245,000
= $4,900 unfavorable
b. The volume variance is
= (Denominator machine-hours - Standard machine-hours allowed) × Budgeted fixed overhead rate
= (7,000 machine hours - 7,300 machine hours) × $245,000 ÷ 7,000 machine hours
= $10,500 favorable