Yeah yesterday was 2x drop and so is today, I believe. The mushrooms I hunted dropped, on average, $170 mesos. After the 2x, it went down to approximately $90 on average. So not double but significantly more.
Thank you for all of your comments.
They have helped. If'n I had a chaos I'd surely sell. Since I don't have that and I discovered the existence of 4hr. 2x experience and drop, I'll do that today. Try to save up for both this week or sell stuff in MTS. 2x Experience cards suck for times though. I'm not usually on when these "events" happen so getting a 30 day one for when I'm on MS the most means forgoing the the 4x. I am not sure what to do for a 10 day 2x experience and 19,000 mesos for 30 days is just waaayyy to expensive right now. 
Thank you for all of your comments.
They have helped. If'n I had a chaos I'd surely sell. Since I don't have that and I discovered the existence of 4hr. 2x experience and drop, I'll do that today. Try to save up for both this week or sell stuff in MTS. 2x Experience cards suck for times though. I'm not usually on when these "events" happen so getting a 30 day one for when I'm on MS the most means forgoing the the 4x. I am not sure what to do for a 10 day 2x experience and 19,000 mesos for 30 days is just waaayyy to expensive right now.