As has been said by many here, there is NO REASON for you to feel worried.
The rule states an amount of money per person. You already have more than that. Even after spending some from your previously disclosed amount which was much higher than the minimum requirement.
Rules have some basis correct? And it is not difficult to imagine that the principal behind PoF (Proof of Funds) is to ensure the financial well-being of a new immigrant. To avoid him or her from getting into monetary issues so that this new immigrant can settle down and assimilate as is reasonably needed.
At the border POE / airport officers might ask PoF evidence. And why would they ask to see more than what the Canadian government stipulated as reasonable amount of money to sustain yourself?
Makes sense now...hope you are able to relax. There are so many other worries to worry about buddy - don't let this rattle you!
Wish you all the very best!