What is the minimum amount to be shown in bank to apply for Hong Kong Visa

Hi,
I am an Indian Passport holder with Valid UAE Resdidence Visa. I would like to travel to Hong Kong with my husband who is also holding Indian Passport with Valid UAE Rsidence Visa. As per the reuirements we have to submit 3 months bank statement. Please advice if we have to keep any balance in our bank account and what is the minium amount required.

Thanks & Regards