The phrase "a large fall in" is correct and usable in written English.
It can be used to describe a significant decrease in a particular quantity or measurement, often in economic or statistical contexts.
Example: "There was a large fall in consumer spending during the recession."
Alternatives: "a significant drop in" or "a substantial decline in".
A large fall in investment, along with weaker consumer spending, was the main reason for the weaker outlook.
That will bring some relief to hard-pressed consumers, who suffered a large fall in real income during 2011.
Shares in Clarkson, the world's biggest shipbroker, lost a fifth of their value after it warned that weak global trade would cause a large fall in annual profit.
The decline has coincided with a large fall in gun crime over the same period, with firearms offences down from 15,000 to 5,000.
A large fall in inventories subtracted 1.25 percentage points from fourth-quarter growth, making a far bigger dent than usual in the figures.
But it took the return of democracy in 1990, with its ability to bestow legitimacy, to create an investment-led boom and a large fall in poverty.
That doesn't take account of inflation either - suggesting a larger fall in the quantity of goods that were bought.
Shares closed down Pearson experienced a larger fall in September 2001 when the dotcom bubble burst, however this was spread over a number of days of declines.
This year's results show a small fall in the proportion of top grades awarded in England and Wales - but a larger fall in Northern Ireland.
We predicted that individuals making monetary decisions would become more risk-averse after feeding if the meal had a larger impact on metabolic state (i.e. a larger fall in ghrelin).
Indeed in terms of both statin and anti-depressant prescribing non-participants recorded a larger fall in variation.
