Hi
You could have found this information from with this website under the Nigeria - Visitor Information section
http://www.africaguide.com/country/nigeria/info.htm#money
There is a link to FX Currency Converter - anyway I have done it for you - These are the results:
FXConverter - 164 Currency Converter Results
Monday, May 21, 2001
1 Nigerian Naira = 0.01025 Euro
1 Euro (EUR) = 97.57075 Nigerian Naira (NGN)
Or
1 Euro = 100.316 Nigerian Naira
1 Nigerian Naira (NGN) = 0.009968 Euro (EUR)
Hope this helps
Vera