Input credit on capital goods in business of restaurants

Till 15/11/2017 you can avail ITC on all inputs , Input services, Capital goods used in the business of restaurant. But after 15/11/2017 if you are elibile for 5% rate on outward supply you can not avail input  credit 

If a restaurant having multiple business like renting of banquet and other renting of immovable property service then whether the ITC is available ? And if yes then how much ? Is there any proportion or formula for that available?