if I eat 800 calories a day, how much weight will I loose?

hey! im wonderin if I eat 800 calories per day with the acception of possibly burnin 100-200, and if I keep this up for about 2 weeks, how much weight will I loose? im 100 lbs rite now im 14 a 5''0 (a girl)

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I''m on the same diet right now, going on a month. I lost 7 lbs in 2 weeks. 15 total

• You''ll probably gain weight! When you eat too few calories your body ''thinks'' it''s starving and your metabolism slows down to nearly nothing.
• That''s terrible don''t do that. 100 pounds isn''t even close to being overweight. You need to eat properly so your body can grow. Do you want to be 5''0 forever? Please eat and don''t stunt your growth :)
• First of all, you will burn more than that a day, just by walking and existing basically.
  
  Secondly, it all depends on exactly how active you are. But I would estimate about 2 pounds a week.
  
  Thirdly, you are very small already. Don''t lose weight.