Marin Industries has the following patents on its December $31,2024,$ balance sheet:

$\backslash$table$[[$Patent Item,Initial Cost,Date Acquired,Useful Life at Date Acquired$],[$Patent $A,$$$52,800,\frac{3}{1}\frac{?}{21},20$ years$],[$Patent B$,$$$20,400,\frac{7}{1}\frac{?}{22},10$ years$],[$Patent $C,$$$16,800,\frac{9}{1}\frac{?}{23},8$ years$]]$

The following events occurred during the year ended December $31\mathrm{.}2025.$

Research and development costs of $$352,500$ were incurred during the year.

Patent D was purchased on July $1$ for $$10,080.$ This patent has a useful life of $12$ years.

As a result of reduced demands for certain products protected by Patent $B,$ a possible impairment of Patent $B^{\text{'}}$ s value may have occurred at December $31,2025.$ The controller for Marin estimates the future cash flows from Patent $B$ will be as follows:

$\backslash$table$[[$Year$,$Future Cash Flows$],[2026,$$$2,400$