What does the cryptic crossword clue "49 per cent? 100 per cent! (3,4)" mean?

The definition is "49 per cent / 100 per cent!". The wordplay uses a double definition. Double definition The answer is NOT HALF.

49 per cent? 100 per cent! (3,4)

Times Cryptic #28701 | 7 Down | 2023-09-06 flower