Yo bro... better dun put salary expectation before interview, unless u are really2 required to do so (usually i just put negotiable on the form without mentioning number).

Rather than letting everyone, incl interviewer, know your 2 years exp not related, you have to find out how it could relate together with your MBA for your applied position.

It is much easier to know how much they are able to pay you after or during the interview, who knows it might be better than your expected salary, otherwise you can just negotiate since they are considering you already.

Good Luck