In Croatia it is about 800-1 200 euros if you have an apartment already and about 1 000-2 000 if you do not.
Bills: 200-300 euros
Food: 150-300 euros
Car: 50-180 euros (registry, insurance, fuel)
Personal expenses: 150-250 euros
Emergency expenses: 50-150 euros
Rent: 350-700 euros.
Total: 600 (950 with rent)-1 180 (1 880 wiht rent).