Posted 7/10/2018 12:18 (#6860913 - in reply to #6860672) Subject: RE: What's the problem? It's just math.
Exports drop by 40%, total production drops by 17%. We produce approx. 120 MMT & export approx. 50 MMT. 17% of 120 MMT is 20.4 MMT. 40% of 50 is 20 MMT.
20.4 is close enough to 20 for government work.