Performance Audit/Analysis Tool

[Keegan MacNichol]

Hey all, 

I'm wondering if anyone knows of a good tool that's purpose built for analyzing the current performance of an existing asset. 

For instance, I purchased a duplex ~7 years ago. Since purchase I've: addressed deferred maintenance, made improvements, and increased rents, etc. Is there an excel tool that can show my current ROI, IRR, COC, etc? Most tools are for analyzing potential deals, but I've never come across one specifically for analyzing the current performance of AUM.

Obviously I can modify my go-to analysis tools, but I'm curious if there's a better way. Am I overthinking this? 

CHEERS!