ROI for Investor includes & preferred %

[Krishonda Johnson]

1st question

What do you include in calculating the end buyers expenses on a fix and flip so that you can calculate the proper ROI?

So far I've added

My wholesale price + closing + Reno. Price = Amount invested

Not sure about holding cost and specifically what would be included but if i need to add more to the equation I'd really appreciate the advice...

2nd question

As an investor, about how much ROI % you'd prefer or deals that get your attention?