BRRRR Calculator help

[Miles Stanley]

Hello BP Community,

I have been studying the mechanics of the BRRRR calculator here on BP and i have a couple questions about a few of the output metrics that i cant determine how they are calculated.

1. Does the Calculator account for the holding costs before you get it rented/refinanced?  i don't see how it does unless its indirect (via the "Time to refinance" and/or "Estimated Rehab Time" outputs).  If it does, what is included in the holding costs besides the P&I, taxes, & insurance?
2. On the Refinance portion of the report, I cant seem to figure out how the "Total Cash Invested" is calculated.

Please help!!

Thanks for indulging my nerdyness.