[II] On January 1, 2013, Plymouth Corporation purchased an 80% interest in Salem Company for $1,200,000. A summary of Salem's balance sheet on that date revealed the following: The equipment had an original life of 20 years and has a remaining useful life of 10 years. A. Calculate the difference between implied and book value C. For the December 31,2013 , prepare the workpaper entry to assign, amortize, and depreciate the difference between implied and book value