You did not really pay these amounts. You paid $550/pp for the Plus Cruise Fare Package. Subtract that from your cruise fare shown on an invoice and the net is what the cabin cost was. (If your TA discounts, that may or may not be easy since they may only show your net cost on the agency invoice). Also, if your TA discounts the cruise fare, you will have received a discount on the $550/pp as well since it is all bundled.
You did book quite some time ago as you even paid the old CA value $15.50/pp/day.
Princess shows their list price market value for each element. In this way, the drink package is WAY over-priced, so don't worry about the numbers. Just be concerned with the included elements.
PS - Princess will contribute $17/pp/day to the "tip pool", but you do not need to pay more. If you upgrade to $60 Plus, of course that package will then indicate a CA amount of $17/pp/day.