Best way to travel both ways from HKIA and staying for 5 - 6 days

We are 3 adults and would like to know how much it would cost to buy 2 way journey from HKIA to Evergreen Hotel at 48 Woosung St, Yau Ma Tei, and return journey to HKIA from Macau on 3 March, Please suggest also about city travel too, or we should buy only one way from Airport ?

Thanks
Hazel