The main expenses for the next few months: monthly meals (conservatively estimated at around 300), telephone charges (around 50), internet access fees (around 40, and less internet access), clothes (depending on the clothes you buy), and the money for buying drinks and snacks magazines at ordinary times, so you should calculate it yourself.
As far as I'm concerned, there are only a handful of trips to the city each semester. I often go to the canteen, occasionally buy something online, often surf the internet, and the telephone bill is relatively low. I buy magazines every month, occasionally go out to drink, eat and sing with my friends, and there are other miscellaneous expenses, about 600 a month.