There are couple thing which would be good to know to understand your query,
first what is Entry URL custom variable or you are referring to Page Name?
a small snip of the report would be great to provide you the reason for the discrepancy.
let me explain Entry metric The starting of the visit is known as entry and happens once in a visit, so when you compare Page Views, Visits, Unique Visitors & Entries in a key metric report you will see Number of page views which happened Under all the Visits of all the visitors and the entry are equal to visits.
Entry metric represents the number of times a given value is captured as the first value in a visit.
Entries can occur only once per visit. However, it is not necessarily the first hit if the variable is not defined which is why it is important to understand what you are looking at and how you are comparing these metrics.