Marin Industries has the following patents on its December 31, 2019, balance sheet.

Patent Item		Initial Cost		Date Acquired		Useful Life at Date Acquired
Patent A		$41,208		3/1/16		17 years
Patent B		$15,240		7/1/17		10 years
Patent C		$15,360		9/1/18		4 years

The following events occurred during the year ended December 31, 2020.

1.		Research and development costs of $232,000 were incurred during the year.
2.		Patent D was purchased on July 1 for $30,438. This patent has a useful life of 91/2 years.
3.		As a result of reduced demands for certain products protected by Patent B, a possible impairment of Patent Bs value may have occurred at December 31, 2020. The controller for Marin estimates the expected future cash flows from Patent B will be as follows.

Year		Expected Future Cash Flows
2021		$1,900
2022		1,900
2023		1,900

The proper discount rate to be used for these flows is 8%. (Assume that the cash flows occur at the end of the year.)

Compute the total carrying amount of Marin patents on its December 31, 2019, balance sheet.

Total carrying amount

$enter the Total carrying amount in dollars

Compute the total carrying amount of Marin' patents on its December 31, 2020, balance sheet.

Total carrying amount

$enter the Total carrying amount in dollars