When a report is batch print any characters like squared powers get replaced by a full number. The first image is before printing and the density units are correct.
The second image is after batch printing and the units are incorrect.
What needs to happen is the cube power needs to be replaced with the special character for cube power. Go to the sheet designer and select the cell with the unit required. The cell will have a number 3, in this case, and remove it.
Once the number has been remove we can go to the insert ribbon and the symbols button. Once there we can select the square and cure power special character.