Breakdown of Turntable Performance

Ideally it should be:
Cartridge 100%
Arm, Platter and Plinth 0%

With the very best tables and arms I would say:
Cartridge 90%
Arm 4%
Platter 1%
Plinth 1%
Outside influences 4%

With a typical mid Fi table:
Cartridge 70%
Arm 10%
Platter 4%
Plinth 12%
Outside influences 4%