2023 Honda CRV EX MPG/Range

Hi everyone I just got a new CRV EX a couple weeks ago and wanted to see if my MPG/Range was in line with what others are seeing. When I first got the car the range was 400 miles on a full tank. Now a full tank gets me ~389 miles. I’m currently getting 27.9/gallon. Do you all find that using Econ mode makes a difference? Thanks!