No credit card required
Browse credit cards from a variety of issuers to see if there's a better card for you.
Because something else happened in between. One of your negatives could have updated, or if you've done any disputes without resolution in your favor (making derog appear more recent).
If everything was the same, you'd get same number of points back.
If you're really curious, go over your reports, see when each item reported last, and also if other things like number of accounts with balances changed.