Calories are not the only significant factor determining rates of fat loss. Starving to lose body fat is not the answer; you must fuel your human engine with quality food sources and combinations at the right time. Calories are secondary to food choices. Eat 2,000 calories of lucky charms and 2,000 calories of high quality protein, healthy fats and fibrous green vegetables. See what happens, not the same after all.
Never diet for more than 16 weeks, by that time the body is going to hold on to every bit of fat it can and chop away at muscle. You must rotate your emphasis and use phases to restore metabolism for future fat loss efforts by overfeeding to produce quality muscle which will burn more calories 24x7.