One has to be a world champion on calorie counting in order to really implement it in practice. It simply doesn't work. Instead of jotting down points, here's the article:
We, on LCHF diet, hardly bother about calorie counting. We look at C:P:F ratios and eat to satiety. We don't aim for pushing toward fighting perpetual hunger.
Checking fasting weight weekly and tweaking on weekly basis is the way to go. One can never get it right by counting calories. If it's approximate with so wide a variation, why bother about it.
Calorie counting, just like BMI ( healthunlocked.com/diabetes... ), is irrelevant for us on LCHF diet, and rightfully so.