26.5 % to ppm

26.5 % = 265,000 ppm

%ppm
20.5 %205,000
22.5 %225,000
24.5 %245,000
26.5265,000
28.5 %285,000
30.5 %305,000
32.5 %325,000

26.5 % = 265,000 ppm

Formula

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