Your code doesn't store the nick who received the money anywhere. If you are only storing the total sent to everyone, just use a variable:

Code:
on *:text:[CASH SEND]*:#echo: {
  if ($7) { inc %cashsent $remove($5,$chr(36)) }
}



If you want to store the money received for each nick, you'd be better off using hash tables, imo. Still...

Code:
on *:text:[CASH SEND]*:#echo: {
    var %result = $read(txt\ingame_stats\sentamount.txt,ns,$7)
    .write -l $readn txt\ingame_stats\sentamount.txt $7 $calc(%result + $remove($6,$chr(36)))
}


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