Rehab Contractor Budgeting Calculator

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I have been searching for a what I would call a 'rehab budgeting calculator'. I was wondering if anyone here is using something like this or has made their own and would like to share. To explain, I am basically looking for a program or excel sheet formatted document that I can alter with my own estimated prices for projects with my main goal being to systematize my process. 

i.e. I would be able to add my own estimated costs into this program and/or formula once and save it, then when I would be analyzing a property I could just put number of bathrooms: 2, the program/sheet would then give me an approximate estimate for 2 bathrooms going off of the estimate numbers I have originally entered.

I basically want to setup this sheet in a way that I can enter all the estimated prices associated with a home once, save it, and then reuse it where I can go through it quickly enter a numerical value of how many bedrooms, bathrooms, kitchens, flooring etc. needs to be redone and at the end it will give me a full price for the project.

Please let me know if anyone is using anything like this or if I was not clear in my explanation. 

Thanks in advance and I look forward to hearing back.