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.
References in periodicals archive ?
Back-of-the-envelope calculation shows the returns from the APY work out to be seven to eight per cent.
A rough back-of-the-envelope calculation suggests that average annual wages are about $35,000 per year.
After doing a full cost analysis on taking out a personal loan instead of just a back-of-the-envelope calculation, you may find your holiday or home improvement costs a lot more than you originally thought.
Scanlon's back-of-the-envelope calculation suggests the lakes could have persisted or hundreds or even a few thousand years.
Consider this back-of-the-envelope calculation of the Oregon program's cost to taxpayers.
Some regulators do engage in a back-of-the-envelope calculation by multiplying an average hourly wage rate and regulatory compliance hours, but many do not, in part because arriving at an acceptable value for an hourly wage rate is no small feat.
A back-of-the-envelope calculation, assuming a $100 million figure, suggests that this would lead to only a $100 credit to the poorest one-third, which comes out to be about $8 per month.
A back-of-the-envelope calculation suffices to show that, unless the government is prepared to tolerate a further increase in the investment rate, achieving a GDP growth target of 7.
One source, who is not involved in the project but did a back-of-the-envelope calculation, estimated it would take blended rents of about $110 per foot for the project to break even.
The climate impact of this economic strategy is less often considered, and yet if we assume that each student returns home only once in each academic year, then a back-of-the-envelope calculation indicates that this produces more in terms of CO2 emissions than they are entitled to under the sorts of global limits that would ensure climate stability.
A back-of-the-envelope calculation suggests Labour would lose 13 of their 29 seats in Wales, leaving them with fewer than half.
That means, by a back-of-the-envelope calculation, there is one cancer cell for every 100 quadrillion normal bone marrow cells nationwide per year, he said.
That amounts to 120 issues, several hundred articles, and, by a back-of-the-envelope calculation, over 3 million words--and counting.
A back-of-the-envelope calculation suggests that if China could allocate capital more efficiently, it would reduce its investment intensity from the current 40 percent of GDP to 35 percent without sacrificing its economic growth (and hence deliver a greater improvement to its citizens' living standard).
Simple back-of-the-envelope calculation indicates that an AIS receiver fitted on a low-Earth-orbit satellite can provide tactical-level information on a near-real-time basis.