gear ratios and torque

.09907121 x 100% = 9.90712%. Looks right to me, but there are calculators on gear ratio with tire diameter and rpm for anything automotive at Wallace racing that are more applicable. Percentage ratio increase/decrease is usually used for determining parameters in fixed stationary drive systems or oftentimes bicycle gearing instead of automotive application.

Even still, it's a curve. To say you have an increase or decrease requires a fixed data point. For this example, you'd need "at what RPM" do we have X amount of torque with one gear versus X amount of torque with another gear at the same RPM. That's why I said what I did. You simply move the torque curve up or down in the RPM range depending on gear set. You cannot just look at the whole picture and say "this gear makes less torque than that one". That's incorrect and is the point I was trying to make. But my ego got in the way. Damn that thing.