There aren't really hard and fast percentages. Some people, such as Griff, will recommend 70-80% fat and others will recommend 50-60. Your ratios are pretty good in general. If you're looking to lose weight fiddle with the carbs a bit. Some people say go to 0 and others will sometimes recommend to up them. Are you getting enough sleep? Any constant stressors in your life? These two things can be very influential in weight loss.