In Myanmar, five laborers, each making the equivalent of $2.50 per day, can produce 42 units per day. In China, ten laborers, each making the equivalent of \$1.75 per day, can produce 48 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 _____ (Myanmar/Billings,Montana/China), with a labor cost per unit of $ ____ (Enter your response rounded to two decimal places.)