There is not a one-size-fits-all answer to this question. People come in many shapes and sizes and the amount of liposuction that can be done varies from person to person and facility to facility. If you weight 200 pounds and you remove 10 pounds of fat, you are removing a much smaller percentage than someone who weights 120 pounds and has 10 pounds of fat suctioned. Additionally, the setting of the liposuction makes a difference - whether you are having the surgery in an office OR, surgicenter or inpatient hospital setting. Obviously the more fat that is removed, closer the post operative monitoring is required. This is essential for the safety of the patient. So without knowing more about you, seeing pictures, or examining you in person, it is impossible to give you a specific number or about of fat that can be safely removed.
Web reference: http://www.shaferplasticsurgery.com