Sorry your hear but glad you came. I am a healthy 54 and in pretty good shape. I had DaVinci March 27th and am healing just fine. Starting back to work full time tomorrow. Desk and light work only.
I had a 10 needle biopsy that had only one needle with cancer and 1% of that one needle had cancer. I was staged as a T1C Gleaseon 6. If you choose surgery you will have a post operative look at whats going on. My Gleason went from 6 to 7 and my cancer was encapsulated and was 10% of the prostate.
As far as what a biopsy reveals regarding %'s I can only tell you that I have seen equal stories where the cancer was equal to and lessor or greater than what was indicated. There are other tests that can show more maybe but your Doctor can assist you better with that.
If I may recomend that you get informed. This site is wonderful source as well as the American Cancer Society (www.cancer.org) and the National Cancer Institue. www.Yananow.net is another site too.
Stay with us. There will be many other members who will be along to give you some good advice and support. I keep in close touch with several guys or their wifes from this site who share surgery dates and we share notes.
Dont make quick uniformed decisions. Get good information and act on it. I was concerned that I was too early in acting on mine but after post op I learned that mine was a little more agressive and a little larger in size. Yours may be nothing like mine. If you learn one thing it is that this disease is user specific for sure.