I'm a little troubled why you bothered to turn the values into percents. What would you do if it was $150,000 and there was another $50,000 @ 15%?
I just have to struggle with this. Which part did you do incorrectly on purpose! A very. very large part of success is personal confidence. Learn the facts. Execute a rational algorithm. Know what you are doing on each step along the way. Check you work. Move on. (You may wish to pay up you E&O Insurance)
The percentages can take care of themselves.