Just wanted to jump in and point out that this is a very individual thing. I lost at a pretty even pace and have maintained on anywhere between 50 - 60% carbs per day. They're all good carbs, fruit, vegetables, whole grains... Lowering carbs did not work for me and caused me to plateau (as well as feel like crap). I asked the doctor about it and she said that whatever I was doing I should keep doing, since my bloodwork numbers were fantastic.
What I would advise, though, is to experiment and change up the ratios. That's when you will find out what works for you. Keep really detailed notes on what you eat and how you lose (pounds as well as inches) and you should find something that you can stick with.
And now that you don't have to be perfect, you can be good.