However, on the other hand side, experts from which this knowledge is acquirable, are trained business experts that are deeply familiar with this kind of estimation: estimating business operating figures.
The industry estimates business losses of more than 8bn rupees (nearly $150m) a day in Bangalore alone.
Now some Washington pols are dreaming of raising big bucks from the $345 billion "tax gap," or what the IRS estimates business and individuals owed on legal income and didn't voluntarily pony up in 2001.
Spectators packed the outdoor patio, bar and dining room under the glow of king-sized flat screens at BJ's Brewhouse on Brand, where manager Chris Fulkerson estimates business has seen a 10% uptick during Kings playoff games.
Paul Turner-Mitchell, a business rates campaigner who calculated Amazon's estimated business rates bill, said: "Retail has evolved over recent years but the current business rate regime simply does not ebb and flow with economical or market place changes".
"You've got people that still want to build pools, but now you're getting maybe 20percentt or 10percentthatat can actually qualify now," said Dave Brandenburg, a pool builder in north Phoenix who estimated business was off 40percentto70percentcent.
To underline how absurd they view that estimate, business lobbyists point to a prediction by FedEx that it alone will have to spend $6 billion to comply with the new rules.
Threadneedle Street said more companies were stockpiling goods and had put off their investment plans amid lingering uncertainty, estimating business investment in the British economy was as much as 14% below where it would have been without Brexit.
Recently, Redfin launched a very similar feature and a number of startups like Surefield are also getting into the home-price estimate business.
To estimate business profits, we requested business owners to estimate their monthly production costs during the last loan cycle in terms of inputs, transportation, taxes; rents, water, electricity, etc.
