Amazon.com faces many situations where it needs to apply the decision tools presented in this chapter, such as calculating the break$-$even point to determine a products profitability. Amazons dominance of the online retail space, selling other companys products, is well known. But not everyone may realize that Amazon also sells its own private$-$label electronics, including USB cables, mice, keyboards, and audio cables, under the brand name AmazonBasics. Assume that Amazons management was provided with the following information regarding the production and sales of Bluetooth keyboards for tablet computers for $2022.$AMAZON CASE.pngInstructions$($Ignore any income tax considerations.$)$What is the operating income for $2022?$What is the unit contribution margin for $2022?$What is the break$-$even point in sales units for $2022?$Assume that management set the sales target for the year $2023$ at a level of $$550,000(22,000$ keyboards at the same unit selling price$).$ Amazons management believes that to attain the sales target in $2023,$ the company must incur an additional selling expense of $$10,000$ for advertising in $2023,$ with all other unit variable costs and fixed costs remaining constant. What will be the break$-$even point in sales dollars for $2023$ if the company spends the additional $$10,000?$If the company spends the additional $$10,000$ for advertising in $2023$ and unit variable costs, unit selling price, and all other fixed costs remain at $2022$ levels, what is the sales level in dollars required to equal $2022$ operating income?