If your injury did not result in any medical treatment, you won't recover anything.If you had medical treatment, when you complete your medical treatment and are released by the doctor, obtain your medical bills, medical reports, and if applicable, documentation of any wage loss.  Your personal injury claim filed with the amusement park's insurance carrier should include these items.  Compensation for the medical bills is straight reimbursement.  The medical reports will document the nature and extent of your injury and will be used to determine compensation for pain and suffering, which is an amount in addition to the medical bills.  Compensation for wage loss is straight reimbursement.If the case is settled with the amusement park's insurance carrier, NO lawsuit is filed.  If you are dissatisfied with settlement offers from the amusement park's insurance carrier, reject the settlement offers and file a lawsuit for negligence against the amusement park.  If the case is NOT settled, you will need to file your lawsuit for negligence against the amusement park prior to the expiration of the applicable statute of limitations or you will lose your rights forever in the matter.There isn't any mathematical formula for determining compensation for pain and suffering.  The other items (medical bills and wage loss) as mentioned above, the compensation is straight reimbursement.