Old invoices outstanding amount is the total amount you wish to edit 31258, 69407 so I have to add, you are only invoiced 6891 because now in the system account to edit invoice No.
Old has an outstanding invoice is 31,258 to fix the total to 69,407 so I have to add to your invoice only in 6891 because the system does not edit the invoice.
Invoice unpaid balance in old 31258 you want to fix, so I have to sum to 69407 Invoicing add to you just 6891 because now in accounting system fixed invoices.