Get Mailbox Move Statistics:
Get-MoveRequest | Get-MoveRequestStatistics | ft displayname,*stat*,perc*,totalmailboxsize
Only In Progress:
Get-MoveRequest –MoveStatus InProgress | Get-MoveRequestStatistics | ft displayname,*stat*,perc*,totalmailboxsize
For a constant update:
while (1 -eq 1) { Get-MoveRequest | Get-MoveRequestStatistics; Start-Sleep -Seconds 2; Clear-Host; }