Entrance numbers much lower than visits


I am quite new to matomo and I hope that somebody of you can help me to interpret the data of the email report correctly. In the email report it is said that for the respective time period and the given segment, i. e. subpart of the website, 455 visits occured on the website. But if I check the numbers of the in the report given 12 entrances in section “Title of entry pages” and I count them up I get only 27 and even if I add the in the report given 22 numbers of exits in section “Title of exit pages” I get 210. So I do not get why the number of entrances is that low?

I would be very thankful if someone could shed light on this question.
Thank you very much for it in advance :slight_smile: