At the Investors and Exporters window on Monday, the naira lost value against the dollar, trading for N770.38 per dollar.
At the close of business on June 16, the local currency had lost 16.19 percent of its value against the dollar.
On Monday, the open indicative rate ended at N703.50 to the dollar.
The highest exchange rate during the day's trading was N799 to the dollar before it settled at N770.38.
During the course of the day's trading, the naira sold for as little as N461 per dollar.
At the official Investors and Exporters window on Monday, $78.03 million was traded.
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