The phrase "many percent" is correct and usable in written English.
You can use this phrase when you need to speak about a certain percentage or amount of something. For example, "The survey results showed that 50% of respondents reported feeling confident, while many percent reported feeling very uncertain."
"By how many percent interconnection fees are cut and whether it takes place over two or three years is not really very important," said Harumasa Sato, a professor at Konan University in Kobe and a telecommunications policy expert.
(Santorum: "Me? It's like … what?") Even Weekend Update had two jokes about former Subway spokesman Jared Fogle and a gag about Trump and Ben Carson "polling at exactly too many percent".
The impact area indicates how many percent of the Earth's surface are penetrated by energetic particles.
Implemented treatment protocols Figure a1 illustrates, in how many percent of units the different treatment protocols, that are relevant for hemodynamic management, were implemented (MI = myocardial infarction).
The household is required to trade off how many percent they would be willing to pay as an increase over the water price they pay to obtain and enjoy a varying mix of water service attributes.
I think they said a hundred and eleven thousand people on Robinhood have bought it because Tesla has … It's off, I don't know how many percent, from its high, and I guess they see it as a buying opportunity.
Almost as many, 47 percent, oppose the idea.
Almost as many — 47 percent — say the media encourage politically motivated violence in the way they report the news.
About as many (55 percent) say the overall cost of the national health-care system would go up more sharply.
Across all three debates, 40percentt of independents say their impressions of Romney improved; fewer than half as many, 18 percent, say their views deteriorated.
Almost 70 percent said the war has lasted longer than expected and almost as many (62 percent) said the number of troops in Afghanistan should be decreased.
