8B-2. Can someone show me how to do this problem?

Will rate a thumb up for good response thanks so much (PLEASE CIRCLE OR HIGHLIGHT final answer thx)

In Myanmar, seven laborers, each making the equivalent of $3.50 per day, can produce 42 units per day. In China, nine laborers, each making the equivalent of $2.25 per day, can produce 45 units. In Billings, Montana, three laborers, each making $60.00 per day, can make 102 units. Shipping cost from Myanmar to Denver, Colorado, the final destination, is $1.75 per unit. Shipping cost from China to Denver is $1.00 per unit, while the shipping cost from Billings, Montana to Denver is $0.20 per unit. with a total cost (labor and transportation) per unit of $| (Enter your response Based on total costs (labor and transportation) per unit, the most economical location to produce the item is rounded to two decimal places.) China Billings, Montana Myanmar