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State the total monthly budgeted cost formula. Prepare a budget report for August using flexible budget data. Why does a flexible budget report like that prepared in part (b) provide a better basis for evaluating performance than the report based on static budget data? In September, actual production results were the following Actual production in September units per month Prepare the budget report using flexible budget data, assuming (1) each variable cost was 10% higher than its actual cost in August, and (2) fixed costs were the same in September as in August