A medical office treats two different types of patients, new patients and existing patients. The new patients require(s) three steps: new patient registration, examination and treatment. The existing patients only require(s) two steps: examination and treatment. The new patient registration step has a capacity of 12 patients per hour. The examination step has a capacity of 8 patients per hour. The treatment step has a capacity of 10 patients per hour. The demand for new patients is 5 patients per hour and the demand for existing patients is 11 patients per hour. Instruction: Round to the nearest integer percentage. What is the implied utilization of the bottleneck resource?