maby somebody can show drop rate
I'm sure from the point of IGG's view they just think Yen has the same price as Dollar so they just switch numbers and dont know how much 1U$ is. This is why AG is expensive and drop rate of anything PAID sux.
NEVER buy the lucky bags that are 500 gold. It is the second biggest waste of money you can spend. Every single item in those bags are in spam events, and spam events have a better drop chance.