Hon,
Don't get too hung up on the percentages. You are going to make yourself crazy.

If you eat 65% or 85% protein instead on 75%, it isn't the end of the world. You just do your best guess. The main thing is to re-educate ourselves what a "normal" portion is, as opposed to the supersized stuff a lot of us have been eating.
Picture in your head maybe what a normal portion of eggs was.. say back in the 60s or 70s, this is what I tend to do and it helps me tremendously. How many eggs would my Mom have served for breakfast? 2. Maybe add a strip or 2 of turkey bacon or soy sausage to your meal.. 2 strips of turkey bacon is about 70 calories and a 2 ounces patty of soy sausage is about 50. One piece of toast. whole wheat. One english muffin.
Now breathe.. it's okay to be confused as this is a new plan for everyone. If you use common sense, you'll be fine. I promise.