You should not be using someone else's prices (or Kukun's algorithm), you should be using your own prices from your local contractors and using the specific material selections you picked for your project.Here's an example of how bad some of the data is in Kukun and why it's not practical for investors that are wanting to create accurate estimates for their projects:I just added "Exterior Doors" to my project, and I was told that 4 single doors and 1 double door is $59,352 in Kansas City, MO which is 20x what I would actually pay as an investor.I believe the above was a bug, but nonetheless there was no way for me to fix this issue or understand why or how it was calculating this value.In summary, you don't need a fancy algorithm to tell you what something costs, you just need to know basic math and have a general understanding of how much materials cost and what contractors charge for specific repairs.For example, I have 5 exterior doors I need replaced (4 single entry doors, 1 french patio) this is how I would estimate the costs:- Single exterior door labor 4 x $250/each = $1,000- Single door material 4 x $300/each = $1,200- French patio door labor 1 x $400/each = $400- French patio door material 1 x $750/each = $750Total = $3,350Add 25% profit for your contractor and the quote should be around $5k for 5 doors.The hard part is finding out what your contractors charge, after that it's just basic math that you can do in a spreadsheet.

Lastly, understand that for whatever reason, the Youtube algorithm doesn't love real estate.

I'm assuming they use some kind of mass marketing in combination with an algorithm to determine which properties to buy and how much to pay for them.

The market is part of it, but even within the same market you'll see huge variation from host to host.My experience has been that VRBO's algorithm is EXTREMELY momentum driven compared to Airbnb's. 

FB obviously has some algorithm to determine this isn't a legit personal profile. 2.

If you submit your offer the day or two before, it may hit the algorithm just right and you will have the jump on everyone else.  

So apparently Google changed their search algorithm yesterday in an effort to curb content farms, decrease the scoring for lower-ranked sites, etc.

Therefore, it is impossible to tell exactly how different actions will affect your score, unless you have somebody on the inside of the credit bureau who can deliver the up to date algorithms.

Since nothing is the same, a new valuation must be done every time and a computer algorithm wont be accurate. 

I do think these algorithms will get better over time, and that appraisers and agents can choose good or bad comps and skew an appraisal or BPO.