Compute the year-to-date days-sales-outstanding (DSO) ratio for each month. Show the results numerically and with a visualization. For the latter, use a column chart, also called a vertical bar chart (with DSO as the x-axis and months as the y-axis), to best highlight any concerns about potential collection issues. Develop an aging analysis by customer and invoice using 30-day increments (0–30 days, 31–60 days, 61–90 days and > 90 days). Display this at the customer level with the ability to drill down to the transaction (invoice) level. Provide a visualization of the percentage of accounts receivable in each aging category at the company level using a column chart (with percentage as the x-axis and aging category as the y-axis).