Given this paragraph about Love Island UK Season 9, Kai Fagan and Sanam Harrinanan won the final vote by what percent?

On 13 March 2023, the series was won by Kai Fagan and Sanam Harrinanan with 43.75% of the final vote, becoming the first couple formed during the Casa Amor twist to win the series. Lana Jenkins and Ron Hall finished as runners-up.

43.75%