How is Zakat on money paid if the Nisab is 4845 Libyan Dinars (according to the value of a gram of gold at 57 Dinars), or is it paid on one thousand Dinars, and how is Zakat paid in cash for 200 grams of gold?

The nisab (minimum threshold) for banknotes is the equivalent of 85 grams of pure gold or 595 grams of pure silver. If the money reaches this nisab and a full lunar year passes without it decreasing, then zakat becomes obligatory on it. Considering the lesser of the two nisabs is more cautious and clears one's liability. Zakat becomes due on wealth when it reaches the nisab and a full year has passed, and there is no obligation to pay zakat on anything beyond one's ownership.