An optometry store offers two different types of eye services, full-service and glasses-only. The full-service require(s) three steps: eye examination, glasses fitting and checkout. The glasses-only only require(s) two steps: glasses fitting and checkout. The eye examination step has a capacity of 3 patients per hour. The glasses fitting step has a capacity of 7 patients per hour. The checkout step has a capacity of 10 patients per hour. The demand for full-service is 5 patients per hour and the demand for glasses-only is 9 patients per hour. What is the implied utilization of the bottleneck resource? ____% Round to the nearest integer percentage