Response to the following problem:
Kerry Corp purchased a used bottling machine from Bob's Bottling Inc. on Jan 1, 2012 for $2100000. Bob accounted for the sale correctly under the installment sales method. It had a book value of $1575000. Kerry paid with $300000 cash and a note for $1800000 with an annual interest of 10%. Kerry agreed to make equal annual payments of $600000. Kerry Corp made their first payment on Jan 1, 2013 of $780000 which included interest of $180000 to date of payment. As of Dec 31, 2013 Bob has deferred gross profit of ?