The following is total monthly budgeted cost and activity information for the four activity centers in the billing department of Oregon Power Company Activity Center Cost Driver Variable Fixed 3,300 Account inquiry $80,949 $160,000 labor hours Correspondence$9,604 $30,000 Account billing $150,000$71,000 Bill verification $7,770 $76,000 2,500,000 ines accounts In September, actual costs and activity were as follows: Activity Center TotaDriver Costs Amount 3,140 Account inquiry $236,370 labor hours 2,810 letters Correspondence $40,276 Account billing $221,097 2,500,000 lines 18,700 accounts Bill verification$83,818 Required Compute the flexible-budget variances for the following two activity cost items (round all answers to the nearest dollar and enter favorable variances as positive numbers and unfavorable variances as negative numbers) Account billing Submit AnswerTries 0/10