Zakat to be paid is 2.577% of 'Equals Total Zakatable' if it is equal or above Nisab.
Nisab is the minimum amount of wealth whose owner is obligated to pay Zakat
Nisab on funds varies overtime depending on value of Gold/Silver in a given time.
The Bank will update the Nisab on Quartely basis.
Non halal income include all impermissible income. e.g Interest