How is Allowance for Doubtful Accounts reported on the financial statements? Why is it important for companies

Question:

How is Allowance for Doubtful Accounts reported on the financial statements? Why is it important for companies to report net realizable value of on the balance sheet?
Accounts Receivable
Accounts receivables are debts owed to your company, usually from sales on credit. Accounts receivable is business asset, the sum of the money owed to you by customers who haven’t paid.The standard procedure in business-to-business sales is that...