Ibis Paper Company prepared the following static budget for November: Static budget Units/Volume 12,000 Per unit Sales revenue $21.00 $252,000 Variable costs 8.00 96,000 Contribution margin 156,000 Fixed costs 13,000 Operating income/(Loss) $143,000 If a flexible budget is prepared at a volume of 13,300 units, calculate the operating income at 13,300 units of production. The production level is within the relevant range.