Hart Labs, inc, provides mad cow disease testing for both state and federal governmental agricultural agencies. Because the company's customers are gevernmental agencies, prices are strictly regulated. Therefore, Hart Labs must constantly monitor and control its testing costs. Shown below are the standard costs for a typical test. The Iab does not maintain an imventory of test tubes, As result, the tubes purchased each month are used that month. Actual sctivity for the month of November 2020 , when 900 tests were conducted, resulted in the following: Monthly budgeted fixed overhead is $16,080. Revenues tor the month were $59.400, and selling and adiministrative expenses were saton Compute the total overhead variance. Total Overhead variance $ eTextbook and Media List of Accounts Attempts: 0 of 3 used