i would like to know how much is the transfer from HK Kowloon to Guangzhou. We are group of 9.

You can take the “Jiuguangtong” Shuttle Bus at MTR Hung Hom Station. Referring to the official website, it will cost HK$210/adult for the first class, while HK$250/adult for the Special Class. It departs at 08:15, 13:11 and 18:00 with the duration of about 2 hours.