Updated Proof of Funds

Hello Please kindly help me, IRCC requested for updated POF since my addition of dependents for the last 6 months. The issue now is that the statement I can show is only for 5 months and a week to reflect the minimum funds required. I am thinking of sending the account details backed with LOE stating the increasing balance since addition of family and I can also add my car please do you know if that will be sufficient for IRCC. Please treat as urgent as I have a week to reply back. Thanks.