Apartment would be around (probably more) than 50,000 a month.
Water, gas, electricity is about 15,000 a month.
Food I normally allow about 7,000/week, 30,000 a month.
Transport depends, but about 10,000 a month usually.
200,000yen for an IT position is an insult, tell them to get with reality. I hope its a part time job, 3 days a week.