At December $31,2024,$ the trading investments for Duffy Dog Inc. are as follows:

$\backslash$table$[[$Security$,$Cost,Fair Value,$],[$A$,$$$19,100,$$$21,600,],[$B$,13,700,15,200,],[$C$,21,100,19,100,],[$Totals$,$$$53,{900}_{?},,$$$55,900$