Most listings are in the $10's per square foot per year. The Kihei submarket is going through a decrease in rates. In the last 3 months, the median rate decreased $29 per sqft per year. That's a 64% decrease in rent.
In the last 90 days, 4 listings have come on the market, which means office spaces might be going fast. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 620 sqft.