What is the newsprint and ink expense for a newspaper to print one newspaper?  

Assume a newspaper has a pressrun of 30,000.  Assume each newspaper is
48 pages.  Assuming all other expenses (labor, press depreciation,
lights, etc.) remain the same, how much money could the newspaper save
(in newsprint and ink only) by reducing its pressrun from 30,000 to
29,850?

How would the newsprint and ink expense per paper change for a smaller
or much larger newspaper?  For example: a pressrun of 10,000 with 24
pages per paper, or a pressrun of 100,000 and 80 pages per paper.