And you have hundreds of students, (which based on my calculations, you've made millions already in selling this crap) yet over the course of 8 months not one of them was successful?

By the time that's done, you'll know enough to start investing in distant lands.Education is important, but you will never have all the answers, perfect formulas, or whatever it is you think you need. 30 years ago, people made money in real estate without any ROI calculations, hard money lenders, BP forums, podcasts, coaching courses, etc.

Fair return is calculated to determine if the owneris maintaining the net operating income produced by theproperty in a base year, subject to CPI-related adjustments.https://www.readkong.com/page/guide-to-oakland-rental-housin...2021 - GUIDE TO OAKLAND RENTALHOUSING LAW

.- Consider using tools like the BiggerPockets calculators to run numbers and see what kind of cash flow you can expect from different types of properties.1.

When choosing an investment city, don't rely solely on simple return calculations; consider all major recurring costs.

Use an online mortgage calculator to get an amortization schedule and present it with the offer.

If the bill is $100 a month split between four units, increase it to $120 and charge each tenant $30.How to calculate charges.

Like Christopher said in his post,  that is when you understand that investing is arisk calculated transaction.   

Maybe ill have better luck trying to ask specifics with the group.On my sheet total project cost is calculated by adding Closing costs + Repairs + Holding Costs + Loan amount + Hard money fees.

The teacher did try and have us study balancing a check book and calculate interest rates but the class was meant for kids who couldn't pass normal high school math.