My cargo ships show the cargo capacity is 50,000 (43,341)
Ok But I do not know how to read that line?
Is the number (43,341) how much room is remaining of the 50,000?
Or is it how much is being currently used of the 50,000?
Ok thru trial and error method I figured out the (43,341) number is cargo space remaining available for use.
Just in case any one else searches for this info in the future.
If you look at the tab transported items for your cargo ship this line of info will show up.
cargo capacity X value for your ship (space remaining) in parenthesis.