Because you are a commercial grower, you need professional advice beyond what we home growers/gardeners can offer.

Contact your county's university Extension office and ask to speak with an agent.

Your county's Extension office may not have such a person in that particular office but they should be able to tell you how to contact an agent. In our region, such a person would be called a Small Farms Agent.

I would get you started as to who to contact but I don't have the slightest clue where you live.

Thanks, but the only thing I am asking is the cwt (hundred weight) Just wondering if anyone has info on that, but thanks for the other advise I will look into it.

Your calculation is correct. Yields vary but your numbers sound reasonable. With irrigation and optimal soil, yields might be higher yet. The linked page shows yields of 39,300 pounds per acre. Yup, that's almost 20 tons per acre :0

Here is a link that might be useful: Potato facts

That is hard to believe, isnt it? I guess one of the problems and might be conscidered the biggest one , is where to sell a crop like this, I know a farmer market would be one place, but 5 acres at ultimate yeild would be 200,000 pounds of taters. @ .70 / pound that is 140,000 american dollars. Not to shabby