In your opinion how much percentage of Hindus eat Beef and Pork as it is common amongst some sub castes of Hindu all over the country ???
The low caste people today, were native people of India or the first settlers who use to have any kind of meat available and it was after the Indo-Aryans brought Hinduism and agriculture that the cow was regarded special. But now some hindus have started to have beef. Yes, beef is cheaper than chicken.
Fish is popular among the coastal states. Not popular in North India.India is big and diverse you cannot fit all the people in 1 category. For e.g. many Hindus in states of Kerala and Tamil Nadu have beef and upper caste Hindus in Bengal and Assam have fish. so exact percentage cannot be given.