The following events occur for The Underwood Corporation during 2015 and 2016, its first two years of operations.

June 12, 2015 Provide services to customers on account for $39,800.

September 17, 2015 Receive $24,000 from customers on account.

December 31, 2015 Estimate that 45% of accounts receivable at the end of the year will not be received.

March 4, 2016 Provide services to customers on account for $54,800.

May 20, 2016 Receive $10,000 from customers for services provided in 2015.

July 2, 2016 Write off the remaining amounts owed from services provided in 2015.

October 19, 2016 Receive $44,000 from customers for services provided in 2016.

December 31, 2016 Estimate that 45% of accounts receivable at the end of the year will not be received.

Calculate the net realizable value of accounts receivable at the end of 2015 and 2016.