The figure shows as 12500.00 - I want it to show as 12,500.00. Any ideas? I also want the £ sign to show before in total column as £12,500.00
\documentclass{letter}
\usepackage{graphicx}
\usepackage{invoice}
\renewcommand{\$}{\pounds}
\date{\today}
\begin{document}
\begin{letter}{ Banana}
\opening{\underline Sent }
\begin{invoice}{Sterling}{0}
\caption{Baby Limited}
\ProjectTitle{77 }%
\Fee{Full Quarter; 25 June - 29 September 2022} { 625} {20}
\end{invoice}
\end{letter}
\end{document}