520 % to ppm

520 % = 5,200,000 ppm

%ppm
505 %5,050,000
510 %5,100,000
515 %5,150,000
5205,200,000
525 %5,250,000
530 %5,300,000
535 %5,350,000

520 % = 5,200,000 ppm

Formula

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