67 % to ppm

67 % = 670,000 ppm

%ppm
52 %520,000
57 %570,000
62 %620,000
67670,000
72 %720,000
77 %770,000
82 %820,000

67 % = 670,000 ppm

Formula

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