Hoq much funds for dependents (F2 Visa)

[Troman]

Hi, I'm planning to obtain F1 visa and study in a US college as an international student. The college's website states that I need at least $15000 on my bank account.
I'm planning to come with my spouse and two children. How do I find out the necessary amount of money in order for them to obtain F2?
Is there an estimate anyone can tell me?

[kabkaba]

Your school will tell you how much they expect you to show. Contact their international student advisor.