I have a question about the SS error and it has to do with the K_cl.

For one of our P values, we inputted a very small percentage for 0% overshoot. When I was plugging it into the formulas on the lecture slides, I got an error of around 99% or something absurd like that. I evaluated the theoretical SS speed as well and it was way smaller than the RPM that we measured in the lab. From my understanding, the output voltage is determined by K_cl(r - omega), but with the small P that we inputted into the computer for each value of omega, the output voltage would be very small. I'm quite sure what I'm doing wrong.