Airport to h1hotel in hongkong, or how much is round trip group ticket for 4 to kowloon

From the airport, you can take the airport shuttle bus line E21 to get to Mong Kok Market, Argyle Street Station and then walk to your hotel. The bus fare is around 14HK$.
The airport express cannot reach your hotel. If you take the express to Kowloon, the fare is 90HK$ per person for a single trip and after that you need to take a taxi to your hotel.