Posters.com is an Internet retailer of high$-$quality posters. The company has $$840,000$ in operating assets and fixed expenses of $$158,000$ per year. With this level of operating assets and fixed expenses, the company can support sales of up to $$5,100,000$ per year. The company$$s contribution margin ratio is $10\%,$ which means an additional dollar of sales results in additional contribution margin, and net operating income, of $10$ cents.

Required:

Complete the following table showing the relation between sales and return on investment $($ROI$).$

What happens to the company$$s return on investment $($ROI$)$ as sales increase?