you have to look at it calories in vs. calories out. period. After you create a 3500 calorie deficit you will lose 1 pound.
If your days all looked like this:
Eat 1500 cals
Burn 500 Cals from workout
BMR: 1650 (i just used my BMR)
BMR = the calories you burn by just existing... doing NOTHING. You can get that here: http://www.bmi-calculator.net/bmr-calculator/
BMR + Calories Burned = 2150
2150 - Calories Eaten = 650
I have a 650 deficit for the day. At that rate i will lose a little over a pound in about 6 days. (650 x 6 = 3900)
HOpe that makes sense.