Manipulating Existing Code To Create A Circle Shape In Turtle

I used an existing code to create the shape of a circle as I could not find straight forward instructions on how to write the code myself. Therefor, I manipulated the existing code by changing the numbers, which are the coordinates of x and y. This however did not end successful, as the line stopped halfway the circle shape.

This is the code that I changed hoping that it would create a different measurement circle shape, however it did not work!

I still have not figured out why it did not work but I will still try to find out, as I want to understand coding as best as I can.