Total noob move. I just figured it out, it was staring me straight in the eye. The log Error message refers to the box above not below... I was looking at the wrong inputs which wasn't allowing me to troubleshoot correcly.

Thanks for your help!

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I tried my code in sublime text and pythontutor both return a integer value. However the value that gets returned in those IDE's isn't 50 either. Any ideas?

Try your code in another place like pythontutor see why it returns None with that input value.

Duh! Should of thought of this. Thanks for the help!

Print the input (it'll appear above the test result), for some value your function is not returning (the default value for Python is None).