[Question] Drop rate how to count ?

There's no way to test drop rate like there is for exp, so nobody can know the answer.

The reason Mercedes Link and Spirit Pendant are added is they show up on 3 lines
exp +100
Mercedes link +10
Pendant +30
When you add a 2x source, all of them get doubled
exp +200
Mercedes link +20
Pendant +60

oh ya , i forget that is 3 line , ok thx guys , so i think drop rate is only + + + + no *