Final answer:
The cumulative effect of Frost Corp's accounting change from LIFO to FIFO, which resulted in a $700,000 increase in inventory, should be reported as a $490,000 addition to the beginning balance of retained earnings after accounting for a 30% tax rate.
Step-by-step explanation:
The student asked a question regarding how the cumulative effect of an accounting change from LIFO to FIFO should be reported in Frost Corp's financial statements when the change resulted in a $700,000 increase in inventory. Given an income tax rate of 30%, the cumulative effect of this change on retained earnings would be the inventory increase minus the tax effect on this increase. This is calculated as $700,000 less 30% of $700,000 ($210,000), which equals $490,000. Therefore, the correct way to report this would be to show a $490,000 increase in the beginning balance of retained earnings, not on the income statement.