AICPA CPA-Financial Exam - Topic 3 Question 31 Discussion

Choice 'a' is correct. $5,000 decrease.

The cumulative effect of change in accounting principle is determined as of the beginning of the year of change if comparative financial statements are not presented. In this case, the year of change is 1990, so the cumulative effect is the difference in inventory as of the end of 1989. [Note that inventory is a balance sheet item, so the change is based on the balances at the end of the last year the prior method was used. Had this question shown annual income statement amounts of cost of goods sold, we would have had to look at all the past years in the aggregate.] This will allow us to arrive at the adjustment to obtain the amount of retained earnings that would have been reported at the beginning of the period of change if the new accounting principle had been used for all prior periods.