Acme Financial issues letters of credit to importers for overseas purchases. The company charges a nonrefundable application fee of $$4,000$ and, on approval, an additional service fee of $2\mathrm{.}0\%$ of the amount of credit requested.

The company$$s budget for the year just completed included fixed expenses for office salaries and wages of $$774,520,$ leasing office space and equipment of $$56,800,$ and utilities and other operating expenses of $$13,200.$ In addition, the budget also included variable expenses for supplies and other variable overhead costs of $$1,720,000.$ The company estimated these variable overhead costs to be $$2,000$ for each letter of credit approved and issued. The company approves, on average, $75\%$ of the applications it receives.

During the year, the company received $600$ requests and approved $70\%$ of them. The total variable overhead was $10\mathrm{.}0\%$ higher than the standard amount applied; the total fixed expenses were $5\mathrm{.}0\%$ lower than the amount budgeted.

In addition to these expenses, the company paid a $$270,000$ insurance premium for the letters of credit issued. The insurance premium is $1\mathrm{.}0\%$ of the amount of credit 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 versus the amount ordered by importers. The strength of the dollar during the year decreased the insurance premium by $10\mathrm{.}0\%.$

Required:

$1.$ Calculate $($or determine$)$ the following budgeted overhead costs for the year:

$($a$)$ the variable overhead application rate $($per letter of credit issued$)$

$($b$)$ the insurance cost percentage

$($c$)$ the fixed overhead application rate $($per letter of credit issued$)$

$2.$ Prepare an analysis of the overhead cost variances for the year just completed and in so doing answer the following questions:

$($a$)$ What is the total overhead flexible$-$budget variance for the period?

$($b$)$ What is the overhead volume variance for the period?

$($c$)$ What is the total overhead cost variance for the year?

Indicate whether each of the above variances is favorable $($F$)$ or unfavorable $($U$).$

$($For all requirements, round your answers to the nearest whole dollar amount.$)$