The phrase "a dramatic slide in" is correct and usable in written English.
It can be used to describe a significant decrease or decline in a particular metric, such as sales, performance, or stock prices.
Example: "The company reported a dramatic slide in profits this quarter, raising concerns among investors."
Alternatives: "a significant drop in" or "a sharp decline in".
Tesco boss Philip Clarke was brutally ousted on Monday after failing to halt a dramatic slide in sales and profits, and replaced by a little-known executive from Unilever with no retail experience.
Recent auctions by Christie's and Sotheby's have catalogued a dramatic slide in prices of contemporary art after a high last September when a sale of Damien Hirst works fetched £111m.
Tang, who had admitted to marriage infidelity last year, was never popular, but he took a dramatic slide in public opinion when the media discovered that he had added a huge basement to one of his upscale family properties without the proper permits and without paying real-estate taxes.
The chief executive, Dave Lewis, who joined Tesco in 2014 to lead a revival of the supermarket after a dramatic slide in sales and profits, said the group had sold more items to more shoppers after it reduced prices on an improved range of products and stepped up its customer service.
It also owns investment bank Robertson Stephens, which suffered a dramatic slide in the volume of mergers and acquisitions and other deals worldwide.
That is evident nowhere more than in Detroit, where housing prices peaked early, in the second quarter of 2005, and began a dramatic slide in tandem with its sinking auto industry.
This latest defeat came in a dramatic slide from a 95-run win in the second Test at Lord's, which gave the tourists a 1-0 series lead.
The group eventually found more than 500 skeletons, and Mr. Snow presented a dramatic slide show as testimony in the 1985 trial of nine top junta members.
The American was dormie four when a dramatic slide began.
He tries an ill-advised run for third base and, on a whim, makes a dramatic slide that gets him there safely.
With his flair for showmanship, he showed a dramatic slide presentation, explaining that extinguishing a fire is not the most difficult part.
