As character names:

U+00BF INVERTED QUESTION MARK character (¿)

As raw characters:

¿

As a string of HTML entities:

¿

Decoder output:

Byte number 1 is decimal 194, hex 0xC2, octal \302, binary 11000010
This is the first byte of a 2 byte sequence.

Byte number 2 is decimal 191, hex 0xBF, octal \277, binary 10111111
This is continuation byte 1, expecting 0 more.

U+00BF	INVERTED QUESTION MARK
	= turned question mark
	* Spanish
	x (question mark - 003F)
	x (inverted interrobang - 2E18)
	x (reversed question mark - 2E2E)