As character names:

U+0210 LATIN CAPITAL LETTER R WITH DOUBLE GRAVE character (Ȑ)

As raw characters:

Ȑ

As a string of HTML entities:

Ȑ

Decoder output:

Byte number 1 is decimal 200, hex 0xC8, octal \310, binary 11001000
This is the first byte of a 2 byte sequence.

Byte number 2 is decimal 144, hex 0x90, octal \220, binary 10010000
This is continuation byte 1, expecting 0 more.

U+0210	LATIN CAPITAL LETTER R WITH DOUBLE GRAVE
	: 0052 030F