I am checking the problem. Looking at your case it seems many of these Falchion Keys have the same item ID, so they are counted as 1 key.
EDIT: Corrupted database table because of a pair of identical IDs Falchion Keys, problem is fixed. I have added the remaining credit to you.
Thanks for the help Joto, but it happened again..
I loaded 25x more Keys (23x Falchion and 2x Vanguard) and i only got 3.18 CR (1.06 * 3)
Would you check it again?