It costs 21HKD. Yes, the bus stop is close to the tram stop of Des Voeux Road C/Man Wa Lane above the Sheung Wan Mtr station. Yes, there is a tram stop in Fortress Mtr station. North Point and Fortresshill are two mtr stops next to each other. You can go by mtr and get to the other one 3 minutes later. The costs is 4HKD.

Thank you for your help Mr.Jason.

We have a reservation a Yesinn in fortresshill. They told us that we can take the a11 bus and 5mins walk we'll be there already. But with some research and help from the forum I'm thinking of more a cheaper and more sight seeing travel so I tought instead of the a11 bus, if just take the e11 bus from airport to sheung wan then ride the tram to fortresshill will it still be convinient for us? Is the fortresshill tram stop near king's road and ting chung st.?