Aneen's Video Mart sells one- and two-year mail order subscriptions for its video-of-the-month business. Subscriptions are collected in advance and credited to sales. An analysis of the recorded sales activity revealed the following:

20x2 20x3

Sales - 420,000 500,000

Less cancellations - 20,000 30,000

Net sales 400,000 470,000

Subscription expirations:

20x2 120,000

20x3 155,000 130,000

20x4 125,000 200,000

20x5 140,000

Totals 400,000 470,000

In Aneen's December 31, 20x3 balance sheet, the balance for unearned subscription revenue should be? show the solution and explain.