You have not yet setup your correct charging rates. On the Charge Stats screen, at the bottom tap on Settings. On the setup your correct Home costs, the correct Work costs, and the correct Other costs.
Note 1: Home is based on the home address you setup in your Navi.
Note 2: Work is based on the work address you setup in your Navi.
Note 3: Other is the cost at other locations. I picked $0.27 as my average for ChargePoint when I am out and about.