I am having trouble with the below problem Two-Variance Analysis: Service Company Example International Finance Incorporated issues letters of credit to importers for overseas purchases. The company charges a nonrefundable application fee of $3,000 and, on approval, an additional service fee of 2% of the amount of credit requested. The firms budget for the year just completed included fixed expenses for office salaries and wagesof $500,000, leasing office space and equipmentof $50,000, and utilities and other operating expensesof $10,000. In addition, the budget also included variable expenses for supplies and other variable overhead costs of $1,000,000. The company estimated these variable over-head costs to be $2,000 for each letter of credit approved and issued. The company approves, on average, 80% of the applications it receives. During the year, the company received 600 requests and approved 75% of them. The total variable overhead was 10% higher than the standard amount applied; the total fixed expenses were 5% lower than the amount budgeted. In addition to these expenses, the company paid a $270,000 insurance premium for the letters of credit issued. Theinsurance premium is 1% of the amount of credits issued in U.S. dollars. The actual amount of credit issued often differs from the amount requested due to fluctuations in exchange rates and variations in the amount shipped from the amount ordered by importers. The strength of the dollar during the year decreased the insurance premium by 10%.**Required1. Calculate the (a) variable, and (b) fixed overhead rates for the year.2. Prepare an analysis of the overhead variances for the year just completed. (a) What is the total controllable (i.e., flexible-budget) variance for the period? (b) What is the overhead volume variance for the period? ( Hint: These two should sum to $88,000U.)