Cognos Percentage calculation by total

percentage([Counts])
percentage(count (distinct [DataItem]))

Create a calculation by above syntax. Drag that column to cross-tab. You should be getting percentages of summary data.

Topics: Cognos Cross Tab & percent calculation in Total
cognos cross tab how to add percentage

https://it.toolbox.com/question/crosstab-percent-calculation-in-total-071706