1500 is pretty aggressive at that weight, if you’re an average male at 300lbs you can eat 2300kcal and still lose like 2 lbs a week. You don’t want to starve yourself, if you want to be aggressive, eat 2100. Adjust every other week or so.

Calculate your BMR here, and look at the table depending on your exercise level: www.calculator.net/bmr-calculator.html?ctype=stan…