Understanding this problem 

• Euro sign U+20AC encoded as UTF-8 bytes:

E2 82 AC

• Those bytes as ISO-8859-1 (“Latin-1”):

E2  â  U+00E2 LATIN SMALL LETTER A WITH CIRCUMFLEX
82     U+0082 <control> BREAK PERMITTED HERE; BPH
AC  ¬  U+00AC NOT SIGN