I have beats solo 3 rose gold and I want to trade them in for over the ear head phones how much is that?

AFAIK, Apple does not have a trade-in program for the Beats. Depending on when you got your Beats Solo 3s, you may be able to return them for a full refund. Typically this would be a 14-day window from the original purchase date. Past then, you will have to sell them outright. Then use the proceeds to purchase the headphone model you really want.