Yoon Industries has the following patents on its December 31, 2014, statement of financial position (amounts in thousands).

The following events occurred during the year ended December 31, 2015.
1. Research and development costs of W245,700 were incurred during the year. All of these costs (except for W28,000 incurred on May 1, 2015, for Patent C) were incurred prior to projects achieving economic viability.
2. Patent D was purchased on July 1 for W28,500. This patent has a useful life of 9½ years.
3. As a result of reduced demands for certain products protected by Patent B, a possible impairment of Patent B’s value may have occurred at December 31, 2015. The controller for Yoon estimates the expected future cash flows from Patent B will be as follows.

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

(a) Compute the total carrying amount of Yoon’s patents on its December 31, 2014, statement of financial position.

(b) Compute the total carrying amount of Yoon’s patents on its December 31, 2015, statement of financial position.

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Patent Item Initial Cost Date Acquired Useful Life at Date Acquired Patent A #40,800 3/1/11 17 years Patent B #15,000 7/1/12 10 years Patent C #14,400 9/1/13 4 years