Things change—Trends change.

Carriers also base insurance cost on location, distance from fire hydrant, and fire station, police station.The best thing for you to do is to contact multiple insurance agents, both independent and captive and see what their rates are.  

A lot of these owners are working out payment plans with the banks or selling their homes for a profit, meaning they won't be foreclosed on.You always want to read three sources of information, and try looking for data articles, not articles that interpret the data as most writers don't understand Real Estate and they are just looking for sensational information.https://www.attomdata.com/news/market-trends/foreclosures/attom-midyear-2022-u-s-foreclosure-market-report/#:~:text=Nationwide%200.12%20percent%20of%20all,the%20first%20half%20of%202022.This time around the market is so far different than 2008:1.

However I’ve noticed a trend that the premium properties (2500 to 3000 sq ft) which were 1.2 M to 1.5 million have quickly lost lot of value and are now around 875k to 1.1M range.

You will learn what the trend is, and part of that trend will include the current sales...which will give you the number you are looking for.2 - Only if your research to answer Question #1 says there's a difference.3 - There is no percentage that tells you anything with regard to this. 

Evidence of that growth abounds:Self-storage occupancy rates and rental rates in a number of U.S. markets reached record highs.Demand for self-storage keeps going up thanks to an array of trends, including the overall downsizing of baby boomers’ households, the general preference among millennials for renting apartments versus owning homes and the sustained mobility of American workers.Over time, self-storage has demonstrated that it’s a recession-resistant sector.In short, self-storage furnishes a wealth of reasons why acquiring an existing facility or building a new facility can open the roll-up door to attractive investment gains.Good luck!

Mahalo for your feedback, I continue to look at my other IRA accounts and they go down every month, and I believe this trend will continue thru 2023. 

It also gives some leverage when bargaining deals as I am much more knowledgeable about market trends, home values, to make money off the sale (the commission).Overall, it has been a blessing since I have gotten my license and I highly recommend to any investor, especially young investors just starting out, to get their license too!

What market research, trends, and indicators should we monitor?

If you review the recent sales then you should be able to see trends for the different elements of comparison.