There are some modification in the version so the size is get reduce and remove unnecessory defintion packages
Incorrect client package size estimate in the Symantec Endpoint Protection Manager console
Fix ID: 3493507
Symptom: When you export a client package in the Symantec Endpoint Protection Manager, the console displays a negative number or an incorrect number for the estimated minimum package size.
Solution: Fixed an issue where the manager miscalculated or counted duplicate LiveUpdate files in the software package object from the database