how many girls get dropped from round 1 to round 2?

You are going to have houses back for round 2. Some of your favorites may not be included in them but you are going to have houses. Relax.

Here is how the process works
Each house has their own method of ranking pnms. That process is a secret. Panhellenic tells each house how many they can invite back each round with the most popular houses having to do the biggest cuts. These lists are compared against your list.

Sororities don’t know who is being invited back to which houses and they don’t know which other houses pnms are going back to or who dropped them.

You are not “dropping” houses so some of your least favorite may show back on your party schedule.

The number of PNMs invited back to each round is specific to each sorority and is dictated by Panhellenic based on the number of PNMs registering.

So top houses invite the least back why lower tier houses invite the most. As you see, there really is a tier system despite what you are being told.