On January 2,2010,Parent Company Purchased 100% of Sub Company's Stock

On January 2,2010,Parent Company purchased 100% of Sub Company's stock for $900,000 cash.At this date,the book value of Sub Company's net assets (i.e.,assets less liabilities)was $800,000 which included property,plant and equipment that have a book value of $400,000 and a market value of $440,000.
Requirements:
A.Prepare the journal entry that would appear on the books of each company at the acquisition date.
B.How much goodwill should Parent Company recognize on the consolidated financial statements at the date of acquisition?