What’s everyone’s current electricity rate /kW?

Our house is primarily electric instead of electric and gas and we just got hit with a $727 electricity bill. Initially it was 10.6¢/kW and it is now currently sitting at 17¢.

How does the site tell me a rate, and then later when the bill arrives it comes out at a higher rate? Also, what’s everyone current rate and your provider? Cause I’m not trying to pay $700+ again.