In Myanmar, seven laborers, each making the equivalent of $2.50 per day, can produce 38 units per day. In China, nine laborers, each making the equivalent of $2.00 per day, can produce 45 units. In Billings, Montana, four laborers, each making $57.00 per day, can make 102 units.
Based on labor cost per unit only, the most economical location to produce the item is ____, with a labor cost per unit of $__. (Enter your response rounded to two decimal places.)