back-of-the-envelope calculation

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back-of-the-envelope calculation

A calculation or mathematical formulation that is approximated in a quick, informal, and rough manner, as might be sketched out on a scrap of paper (such as the back of an envelope). When it came time to pay the bill, we had to do some back-of-the-envelope calculations to figure out who owed how much.
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Back-of-the-envelope calculations by security researchers show that cryptojacking can be lucrative AaAaAeA AE hackers targeting popular illic sites like The Pirate Bay can earn up to $12,000 per month.
Unfortunately, Cessna doesn't publish sink rates at various speeds to compute that accurately, so we are left to back-of-the-envelope calculations.
Wang Feng, a leading demographer from the University of California, Irvine, dismissed Yi's claims as sensational, extremely sloppy and based on highly politicised back-of-the-envelope calculations.
Back-of-the-envelope calculations generally indicate that this will significantly increase profits.
However, back-of-the-envelope calculations would point towards a rise in costs for setting up new administrative buildings and additional staff, among others.
Using back-of-the-envelope calculations of how air and heat flow through structures, he argues that fires with those proportions produce the hottest flames for their volume of fuel.
We started with ideas on a white board, then progressed to back-of-the-envelope calculations, spreadsheet tools, then finally transitioned to our standard design tools for CAD, aircraft performance, structural analysis, etc.
Hence, based on earnings of $93 million and a profit margin of 39 percent, my back-of-the-envelope calculations suggest industry revenue of $238 billion.
Back-of-the-envelope calculations suggest Cairo could receive a further $40bn, in addition to the money pledged last month, if Saudi Arabia, the UAE and Kuwait were to match prior Qatari levels.
Back-of-the-envelope calculations suggest Cairo could receive a further $40 billion, in addition to the money pledged last month, if Saudi Arabia, the UAE and Kuwait were to match prior Qatari levels now Mursi has gone.
Our back-of-the-envelope calculations suggest that a severe shock to asset prices could reduce the value of the industry's investments by 7.
Our back-of-the-envelope calculations suggest the impact on liquidity should be neutral to slightly tightening, but in any case will be very marginal and is unlikely to imply any shift in the policy stance.
Vedder's back-of-the-envelope calculations that he shared with me says that those missing workers could be costing the economy as much as $800 billion in GDP per year.
Back-of-the-envelope calculations suggest that, worldwide, technological change could easily lead to the loss of 5-10 million jobs each year.