"dwindling profits" is a correct and usable part of a sentence in written English.
You can use it when referring to profits that are decreasing over time. For example, "The company's dwindling profits have caused them to lay off several employees."
Steinway sold itself to CBS after years of dwindling profits and managerial discord.
That made all the difference for fence-sitting publishers experiencing dwindling profits.
And large debts and dwindling profits make papers unattractive to outside buyers at any price.
Perhaps we should consider a revamp of corporation tax, basing it not on dwindling profits, but on turnover.
Networks, under enormous pressure to maximize dwindling profits, have been focusing on the more numerous and generally more affluent white households that advertisers prefer.
Fidelity's brokerage unit competes with discounters like Charles Schwab and TD Waterhouse, which have posted dwindling profits after surging growth in the late 90's and early 2000.
As a group they have suffered lately from slow or stagnant growth, falling prices and dwindling profit margins on many products.
While few dispute that DVD's are low-cost, high-profit items for the studios, the studios say they need every penny to survive in a time of dwindling profit margins, and with the menace of piracy looming large.
In the United States, the merger and de facto takeover of the Chrysler Corporation two years ago has been followed by steadily dwindling profit margins and the resignations of many top Chrysler executives, including its chairman, Robert Eaton, and its president, Thomas Stallkamp.
According to a Charles Schwab report released in May 2018, the telecommunications sector has been attempting to reconcile for dwindling profit margins in a high-cost environment, where rising expenses combine with heavy debt loads that are among the highest of any nonfinancial sector — and this is all in spite of increasing wireless demand.
As a result, said Kim Gee Soo, an electronics analyst at Nomura Securities here, Samsung has to rely almost exclusively on the sale of telephone handsets for its dwindling profit.
