I don't understand the title...

Mac-59,

First of all the word "dalmatians" is not spelled d-a-l-m-a-t-i-o-n-s but spelled d-a-l-m-a-t-i-A-n-s. Second, if you watch the ending of the live action moive 101 Dalmatians, you will see that when the owners of the dogs count how many dalmatian dogs are there, that there is a hint suggesting that instead of 99 dalmatians (not counting the mom and dad dalmatians), there is another dalmatian dog that followed the other 99 dalmatians along with the mom dalmatian dog and the dad dalmatian dog. With the 99 dalmatians, the mom and the dad dalmatians along with the 1 dalmatian that followed the other dalmatian dogs home, that would equel 102 dalmatians. That would explain the reason for the title of the movie. Another reason would be that instead of calling the movie 101 Dalmatians 2, the producers thought that it would be cute to call the movie 102 Dalmatians with the 2 representing that the movie is a sequel to 101 Dalmatians. I hope that helps.