This maximum rate is determined by adding 2.50 percentage points to the yield rate on long-term government bonds as published by the Federal Reserve Board or the United States Treasury, or both.

Further, how do I calculate the business use percentage for a rental RV?

People have failed twice now with the housing bubble and the recent meteoric increase in rates because they were gambling with the rates to save a percentage point.  

My longest recent rehab was 2.25 months and added a half bathroom, took down 4 walks including load bearing, put up 3 walls, new plumbing, electrical, flooring, huge percentage of drywall, an eye brow porch, new kitchen with full layout change and new bathroom with full layout change.  

What percentage ARV do you shoot for?

M2 has not come down much since it's post-COVID peak and national debt as a percentage of GDP is at a record high.

You'll only be able to cash out a certain percentage of that existing equity.

So it becomes a 5 steps forward, 3 steps backwards process.I've done the math with a very high percentage rate on the HELOC, and you can easily pay off a 30 year mortgage in 10 years, but you HAVE to treat it like a checking account.  

The numbers don't make sense to me, based on their descriptions.The most dubious is "First page search impression rate"Airbnb defines it as the percentage of time your listing shows up in the top 10 results when a guest searches for a location/date.I have 30 listings in a market with 20,000+ homes available, and they all have a "First page search impression rate" of 40-60%. 

What this means is that the bidding starts at a set percentage rate and the bidding goes down.