AquaLung i200 Nitrox algorithm

[nohappy]

I have a i200 computer. I found that if I set pO2 1.4, and percentage O2 is 32%, MOD would be 33.9m. However, I believe it should be 10*((1.4/32%)-1) = 33.75m. What adjustment do they do? It doesn't look like set O2 -0.1%, because it won't fit all the other pO2 configuration on i200.
Also, why do they make progressive calculation on this, unlike Suunto, they actually make percentage of O2 +1%.

 

[runsongas]

because they are doing the calculation as 33 ft * ((1.4/0.32)-1) then converting back to meters