Office Plus sells its main product, ergonomic mouse pads, for $13 each. Its variable cost is $5.60 per pad. Fixed costs are $210,000 per month for volumes up to 65,000 pads. Above 65,000 pads, monthly fixed costs are $275,000. Prepare a monthly flexible budget for the product, showing sales revenue, variable costs, fixed costs, and operating income for volume levels of 40,000, 55,000, and 80,000 pads. Units Sales Revenue Variable Costs Contribution Margin Fixed Costs Operating Income Office Plus Flexible Budget Budget Amounts Per Unit 40,000 55,000 80,000 13.00 5.60