PainFree sells its main product, ergonomic mouse pads, for $$12$ each. Its variable cost is $$5\mathrm{.}10$ per pad. Fixed costs are

$$220,000$ per month for volumes up to $65,000$ pads. Above $65,000$ pads, monthly fixed costs are $$275,000.$ Prepare a

monthly flexible budget for the product, showing sales revenue, variable costs, fixed costs, and operating income for

volume levels of $40,000,45,000,$ and $80,000$ pads.