12.5 % to ppm

12.5 % = 125,000 ppm

%ppm
9.5 %95,000
10.5 %105,000
11.5 %115,000
12.5125,000
13.5 %135,000
14.5 %145,000
15.5 %155,000

12.5 % = 125,000 ppm

Formula

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