Fix finance graph maximum finding algorithm. (#22488) #660

Job	Run time
Check code formatting	51s
Check changelog formatting	6s
Lint Commit Message	0s
g2.dat	6s
Android	14m 33s
Ubuntu Linux (jammy, debug, [http, network, flac, vorbis OpenGL] disabled) using clang	11m 26s
Ubuntu Linux (AppImage, x86_64)	14m 31s
Ubuntu Linux (debug) using clang, coverage enabled	14m 45s
Ubuntu Linux (Docker)	0s
Ubuntu Linux (jammy, x86_64, portable)	16m 47s
Debian Linux (bullseye, x86_64, portable)	40m 44s
macOS (x64) using CMake	7m 9s
Windows (win32)	10m 16s
Ubuntu Linux (jammy, i686, portable)	17m 35s
macOS (arm64) using CMake	8m 34s
Windows (win32) using mingw	9m 58s
Windows (x64)	14m 7s
Windows (arm64)	13m 20s
macOS universal app bundle	1m 5s
	3h 15m 53s

Provide feedback