If you mean examples about rent prices, a 1-room apartment in Charlottenburg (nice location) costs around €600. Similar apartment in Wedding (a bit further north) is around €500.

For reference, a regular programming job should be around €1500 per month after taxes, while a month worth of supermarket food costs around €250 (although the right habits can shave almost a hundred from that). Add another €100 for a month of unlimited public transport, and you are set.