This graph shows your results from the Ebbinghaus illusion. The first four bars are the results of your trials and the last bar is your average. The results are the diameter of the right center circle as a percentage of the left center circle. If the illusion did not affect your perception, then your results show up as 100%.
Your results are {{ctrl.resultsData.deviation}}% {{ctrl.resultsData.text1}} than the correct size. So your results show {{ctrl.resultsData.text2}} impact of the illusion. Most people make the right circle larger than the left circle.