520.5 % to ppm

520.5 % = 5,205,000 ppm

%ppm
505.5 %5,055,000
510.5 %5,105,000
515.5 %5,155,000
520.55,205,000
525.5 %5,255,000
530.5 %5,305,000
535.5 %5,355,000

520.5 % = 5,205,000 ppm

Formula

1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm