Question - How many calories should I eat a day to lose 1 lb a week?

I'm not sure I have this all figured out. 

My BMR said that my body burns 2000 calories a day....so what does that mean?  How many calories should I eat, and how many should I eat in order to lose?

Thanks in advance for any help you provide!

If your BMR + Activity Level = 2000 calories (Your total calorie intake), then just subtract 500 from that amount, which would be make you have a 500 calorie deficit per day. 3500 calories = 1 pound. If you have 500 calorie deficits everyday for a week you will loose 1 pound as you'll have built up just about 4000 calories burnt up by the end of the week.

Thank you! That makes sense!!