Again, it's not so much the precise numbers that matter, but the fact that I created a very slight caloric deficit (about 6 %), lowered my carbs, upped my protein intake by about 50 %, and cut my fat back, but not crazy. (mnprime.com)
The calorie calculators say if this 300 pound person were to start a very slight caloric deficit (20 %) they would be consuming 2484 calories a day. (scoobysworkshop.com)
In case you're interested, I now eat at a slight caloric deficit, keeping my intake at around 1950 calories per day and I try and stick as closely as possible to the following macros: 25g net carbs, 90g protein and 165g fat. (thehealthyfoodie.com)