s it true that you should mulitply 15X your body weight to find out your necessary caloric needs per day?

If so, I need 1950 calories a day. I counted/wrote down calories all day

Protein shake 210
Chicken/veggies 170
Nuts-380
Fish-145
Protein Bar-270
3 egg whites-51

So my intake today was 1226 cal all day.

What am I missing? I am trying to lose weight/put some lean muscle on.