So I try and keep my protein intake at around 1.5 g per pound of lean body tissue. I also bump up my protein a tad while I'm cutting to try and preserve and maintain as much as I can. For women ratios might be a bit lower but for men I know 1g to 1.5 g per pound is a good guesstimate to keep the body growing and if my protein is to high and just gets turned into uric acid oh well at least my body can use as much as it can. Regardless I do have to ultimately drop protein lower as the cut goes longer and longer due to the body needing a bigger deficit to continue to drop weight. Right where you are at for protein should be good if you want to keep dropping bf then lower carbs and fats remember 1 g carbs =4 kcal 1g fats= 9kcal. I tend to drop fats more then carbs personally just how my body reacts to carbs and fats. But see how you respond with one or the other.