I took a script written by Beege, optimized the code, and removed the global variables. Its one function, reliable, and very easy to use or modify to your needs. I decided to post it because I found it very hard to find a reliable way to get the cpu percentage of a given process. I know that there are a few different methods but I deem WMI unreliable and everything I tried before optimizing this function was to slow i.e. freezing when other CPU intensive processes were active.