How much does it cost live alone into the Brazil?
For tourists, Brazil is cheap.
Shop around to get a good price for tickets and logding.
Once you get here, food is cheap; services are cheap; having fun is cheap; buying memories is cheap.
Some prices of interest:
Internet connection: R$3 - 5 per hour
Beer: R$ 2 - 3 per 600 ml bootle; R$ 1 - 2 per 350 ml can
Taxi: R$ 3 - 6 per km
Big mac: R$ 4 - 5; a comparable local sandwich goes for about half that price
A giant pizza: R$ 20 - 30
A cinema ticket: R$ 5 - 15
Packet of cigarettes (20 pieces, king size): from as low as R$1 (local brands) to about R$4 (international brands)