How much money do students need for living expenses per month?

Question

Hello! I'm a foreign student who has been in Korea for 6 months, studying in the Hongdae area of Seoul. I've already sorted out my monthly rent, but I'm wondering how much would be a reasonable amount for living expenses.

I don't drink much and I'm not big on parties, so I don't think my living expenses will be too high. However, I absolutely love samgyeopsal, but it's quite expensive.

I'm thinking of a budget of around 400,000 to 500,000 won:
1. Food: 300,000 won - I calculated about 10,000 won for two meals a day.
2. Essentials: 20,000 won - I only use shampoo and body wash, no skincare!
3. Transportation: 30,000 won - I don't use it much since my school and home are close, but just in case I need to go far.
4. Phone bill: Around 20,000 won, that's what my friend mentioned.
5. Miscellaneous: 50,000 won

I'm curious, how much do other students spend on monthly living expenses? Any advice would be greatly appreciated. Thank you so much!