Answer:
The answer is B
Explanation:
The detailed accounting entry will be:
Dr Bad Debt Expenses $500,000
Cr Provision for account receivable $500,000
( to record estimation of bad debt over credit sales)
From the detailed entry, the Dr side will go into Income Statement as a type of expense and the Cr side will go into Balance Sheet as contra asset.
Answer A is not right because the re-estimation of bad-debt percentage is not a change in accounting principle
Answer C is not right because the re-estimation of bad-debt percentage in this case does not require adjustment in the beginning balance of retained earning
Answer D is not right because it is not complete ( it does not mention the increase in the contra asset account Provision for account receivable) and it duplicate the record of bad debt expenses ( it has been recorded as expense and unusual loss at the same time).