I'm not 100% sure what you are looking for but I am making the assumption that you want to copy the format of 'Inclearings' to the 'Adjustments' title.
I did this in a couple of steps;
Step 1 - create title field in the Adjustments Volume dataset (I did this step because I couldn't find anything that looked like a title field in your Adjustments Volume dataset)
Step 2 - Drop onto viz
Step 3 - inspect the format of the element you wish to copy
Step 4 - return to Adjustments Volume sheet and replicate format settings
and done !
HTH 18.1 attached
TableauFonts.twbx 70.0 KB
Sorry, I was not clear. I want the format of the numbers to be the same. Notice that the 3 in 308.9K under Inclearings is different than the 3 in 3.65K under Return Items. And the 172 under adjustments is totally different.