ErgoNow sells its main product, ergonomic mouse pads, for $$13$ each. Its variable cost is $$5\mathrm{.}40$ per pad. Fixed costs are

$$215,000$ per month for volumes up to $65,000$ pads. Above $65,000$ pads, monthly fixed costs are $$275,000.$ Prepare a monthly

flexible budget for the product, showing sales revenue, variable costs, fixed costs, and operating income for volume levels of

$45,000,55,000,$ and $70,000$ pads.