Generally I keep to about an average of 1700 cal a day. (But this can vary quite a bit, 1400 one day 2200 another day 1500 another day 1800 yet another day and so on). However, when I was at a higher weight, I would eat more calories in a day. When I started losing at 272lbs I was eating about 2200 a day. But since then it has gradually lowered a bit. Over the course of the past 17 mos. I have lost 91 lbs for a average loss of 5.35 lbs a month. And the more weight I lose, the less I will be able to have in terms of calories.
I hope that this helps someone.