dropping charge

We took a 30 day trip cross country and left the Bolt at home. When we got back I barely get more than 200 miles on a charge. Most days only around 175. The car was not on charge while gone and had a fair charge when we returned. Thoughts?

My 2020 Bolt was delivered today after a week in the shop to replace the charging port. Apparently the "check engine" light went on and the dealership said replacing the port was the fix. Today, after they kindly delivered to my house, I loaded up the kids, hopping in and started driving...