Combine 4 columns into one to display as slices in pie chart in otbi

I have 5 columns namely Catch up, Normal Increase ,Above Max Increase ,Promotion Increase and total increase(sum of 4 previous columns) which are all amounts.

I need to build a pie chart like this :

With 4 different columns I am not able to divide them into slices in my pie chart. My pie chart is currently like this :

How can I do this please?