How much does bank charge for cot?

Excuse me, could you clarify what you mean by "cot" in the context of banking charges? I'm not familiar with that specific term as it relates to banking fees. Typically, banks charge various fees for services like account maintenance, wire transfers, overdrafts, and foreign transaction fees. Is there a specific type of charge or service you're referring to? Perhaps you meant "currency transactions" or "currency conversion" instead of "cot"? If so, the amount charged can vary greatly depending on the bank, the currency involved, and the specific terms of the transaction. It's best to check with your bank for accurate information regarding their fees.