Monthly repair costs on fully rehabbed property?

[Adam Gerber]

How do you guys generally calculate what % of money should be set aside on a monthly basis to cover any unknown repairs? I've read metrics such as 1.5 - 3% of the value of the property?

Additionally, let's assume the property is fully rehabbed (3 units, now worth 1M) - gutted to the studs, new electric, new plumbing, new walls, new kitchens / baths... etc... would you still apply the same % or calculation on how much to set aside each month?

Thanks,