You've gotten two good answers, but they may be more complicated than you need right now.
I'd suggest starting with SP's calculators www.sparkpeople.com/myspark/weight_edit.as
because that way you begin with who you are--age, weight, current level of activity. Then you input your goal (2#/week) and you can find out how many calories you should be eating to achieve that *most of the time* because our bodies aren't like bank accounts.
Then, after a month or so, reassess your progress. There are many reasons why you may lose a lot of weight (or none) at first, why you may plateau, etc.--because each of us is different. Good success to you.
Edited by: BRITOMART at: 8/17/2013 (14:36)