Even subtracting $5k for various costs and prepaid, you still have a loan balance of $428k.  

The current company, after subtracting all expenses, brought in 6000$ last year, which doesn't seem a lot based on my research, so I might have to change.Concerns: If the current crisis gets worse, I imagine less people will travel or won't be willing to pay as much.

Easy way to figure that out is how much principal is left on the current home subtracted from the loan limit for the county they are purchasing in.

Being able to add and subtract isn't what these two books are about. 

So that would be 60k + 55k = 115k which will give you a total monthly income of $4,791.66 - then you will have to subtract your other debts, car payments, credit card, other loans etc.) 

If someone is asking $100,000 for their property a wholesaler would start at offering 70%, $70,000 and then subtract the cost of any repairs that need to be done. so if there’s $20,000 worth of repairs to be done you subtract 20,000 off of the 70 and the highest you can offer is 50,000.

Say you have $1400 in car payments that is subtracted from your restaurant job.

Tell them they'll get a 5% bonus if they finish at or before their completion date, but you'll subtract 5% if they're late, plus deduct another 5% for every additional week after that.

Add up the accumulated costs/expenses, separated by who the source of funds used to pay them.Now, subtract the total negative (accumulated cost) number, the one that is paid by the investor on the rental house, and the homeowner on the other, from the accumulated profits (accumulated CF and sale profit), and what do you have?

When estimating the maximum purchase price of a rental property using the 70% rule, do I subtract only estimated repairs from ARV*.7 when calculating the maximum purchase price or do I also subtract pre-rent holding costs and closing costs to find this maximum purchase price?