If a team loss a war, the members can only collect 30% of the war coins gathered by members in the war. However, on the team info page, the war coin "earned" stat is increased by the total war coins gathered in the battle screen. So the actual war coins collected by the members in this team is anywhere from 30% to 100% of the "war coin earned" stat.
That is a very misleading stat. Given it is trivial to know if a team wins or losses after a war, the War coin "earned" stat should show the war coin actually collected by the team, so that the earning potential of the team can be visible.