I have recently run a Mann Whitney U test. It states that the mean difference (although it should be the median difference is 0.202.

But looking at the descriptions table, the median difference should be 0.553. The problem is that the number in the overall test output does not correlate either with the mean difference or median difference calculated from the median and mean from the descriptive table.

Maybe I am missing something.

Have included an image of the output: