CPU SCHEDULING AVERAGE WAIT TIME

Suppose the shortest remaining time first $($SRTF$)$ CPU scheduling algorithm is used to schedule the processes below. What would be the AVERAGE WAIT TIME time for these processes under SRTF$?$ Show all of your work including the math formulas used. No work shown, no points. Do not attach an HEIC file.

$\backslash$table$[[$Proctss$,$Arrival Time,Burst Time$],[$A$,0,1],[$B$,1,2],[$C$,3,1],[$D$,2,1]]$