In my country it's 50+ %. While the EU paid direct cash subsidies are high, they only scrape the surface making up about 25% of the subsidies.
On top of the EU sibsidies there are direct national subsisidies and a wide spectrum of indirect national and EU level subsidies like export, pension, environmental, protectionist import duties, etc. And yes, beef production gets a similar share of subsidies as other types of farming.
I can't find good europe wide stats. I may have overgeneralized and the average may be under 50%. But the subsidies are still very high.
~$200B/yr in subsidies in USA: https://en.wikipedia.org/wiki/United_States_farm_bill
$990B/yr food GDP in USA: https://www.ers.usda.gov/data-products/ag-and-food-statistic...