The following data have been provided by Tiano Corporation: 
Required:
Compute the variable overhead rate variances for lubricants and for supplies. Indicate whether each of the variances is favorable (F) or unfavorable (U). Show your work!
Definitions:
Unusual Gain
Gains that are not expected to recur frequently or regularly, arising from events not considered part of the ordinary activities of a business.
Annual Report
A comprehensive report on a company's activities, financial performance, and strategy, provided annually to shareholders and the public.
Allowance Method
An accounting technique used to estimate and prepare for the amount of accounts receivable that may not be collectible.
Uncollectible Accounts
Accounts receivable that a company does not expect to collect and thus writes off as a loss.
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