Sort the Order in the Stacked Bar chart

[ncbshiva]

Hi Team,

My requirement is to sort the order in the Stacked bar graph as shown below. As you can see in the first stacked bar graph the Medium with value 3 is on top  and then Hard with value 2 is at bottom . I want this to be reversed means Hard with red color value 2 should come on top and then the Medium with value 3 should come bottom.

Here the legend is a "Calculated Column".

Thanks in advance.