For me personally I generally try to keep my caloric intake around 30% protein, 30% fat, and 40% carbs. Has worked well for when I was trying to lose weight and for when I have been trying to add, so I just try to stick around those percentages all the time. Hitting 30% for protein isn't always easy, and on a week by week basis I'm usually hovering around 28%.
Also while I don't know how your body metabolizes or how much you are exercising, I feel like you will need to consume more than 2500 or 3000 calories a day to bulk when you are already sitting at 235. I was consuming around 2700 calories a day while I was cutting down to 180 a few weeks ago, and I ultimately achieved that goal. The past 3 weeks I've been at around 3000 a day and am sitting steadily in the 177-180 range (daily variances).
Of course, I'm far from an expert. That is just what I have found to have worked for me so far.