If you work Legally, you will have to pay tax up at least 20%,
minimum wage is about NZD 9, after tax will leave you about NZD
7.
Accommodation:
Staying in backpackers for a nite cost you about NZD 14 to NZD 20,
depending where you are.
Food:
Mac and KFC are same price as SG, only in NZD dollars. If you are
thinking of having Asian food like fried noodle or chicken rice, 1
plate cost you about NZD 7 onwards.
Shopping:
GST is 12.5%
Leisure:
Sky diving cost about NZD 150-NZD 250 depending on where you
are
Bungee cost at least NZD 99, cheapest is in Taupo (North
Island)
Cost is higher down at Queenstown as its one of the major tourist
attraction
Insurance:
When injuring youself while traveling in NZ, the NZ Govt pay for
your expenses in the hospital
Driving:
Same side as in Singapore, do not need to apply for international
license if you are driving there. Local (SG License) and
international license last up to a year. If you want to stay there
for more than a year, you have to convert your license