I don't think that's correct. That means I should be eating 1800 for "maintenance" which would put me right back gaining weight again. Maintenance for me is 1400-1500, at 150 lbs. Something off about that equation.
I spent the last year at abobut 1500-1800, working out religiously with weights and cardio for 30 - 120 minutes almost every day, and didn't lose an ounce. Cut my cals back recently to 1200-1400, and I'm losing abot a half pound a week.
There are a lot of factors at work.