Cost of living

My wife and I are looking to relocate our family to Tortola. We are both in the middle of interviewing. My question is. How much less should we expect annual salaries to be on Island vs the U.S.?

Do you mean how much more should the salaries be in BVI? They shouldn't be less.

I didn't think they would be more.
Wanted to know if they were less, how much less on average
Thanks