Data table A 1 2 3 B D E Lanco Industries Flexible Budget Performance Report: Sales and Operating Expenses For the Month Ended June 30 LL F Flexible budget Flexible Volume Master + Actual variance Budget Variance Budget 5 Output units 26,000 ? 31,000 6 Sales revenue $ 251,000 $5,300 F ? ? ? 7 Less: Variable expenses 8 Contribution margin 171,600 ? ? ? $ 190,650 ? ? ? ? ? 9 Less: Fixed expenses 18,000 ? ? ? 23,000 10 Operating income ? ? ? ? ?