spoil x3-x5 (1 Viewer)

[piot]

what does it mean ? this x3 - x5
for example if
mobA spoil 1-2 animal bone i can get 3 - 10 (3*1 - 5*2)  ?
mobB spoil 1-15 animal bone i can get 3 - 75  ?
sometime i get 1 or 2 items from mobs like that
so what is this x3 for ?
https://www.rpg-club.org/p-events-32&s=1

New International RPG-Server New World [x5]
Starts on March, 1st
[ RPG Club Russia - guarantee of quality]
Adena/Exp/SP: amount x5
SealStones: amount x5
Adena, SealStones: chance 100%
Drop: chance x5, amount x1
Spoil: chance x3, amount x3 - x5
Quest: x5 (not for all quests
Quest awards: exp x5, adena x5