I noticed the same thing. Its dropping about 1/2 what it use too. Must be all the complaining the Foundry authors were doing to the Devs about how they made missions that took 80 hours to complete and a simple grinder that has no content is the Top run mission. So to make them happy they prob nerfed the dropps. I was making 600k EC in drops a day from 1 run, now its down to 300k in drops.
You also realize that the loot that drops is random right?
Sometimes it might be lots of engines, deflectors and shields which have high resell value, and other times it might be a crapload of TCD Infusers and Power Insulator consoles.
That's why your amounts change.
You still made 300K ec for doing nothing.
They changed the Drop rate. Its obvious to any that do the Grinder missions, wether its Easy money or The Farmer Quark. I knew excatly when the drop limit would hit and exactly the range of loot income i would recieve. Its an obvious change an others notice it to. So its not something random and not our imagination
The one I do is still dropping several hundred K for the run I do, again, it does depend, if you get a lot of shield/engine/deflector drops you're getting 25-30k per one of them, if you get a lot of weapons and batteries, well, much less money. I clear probably 1.5 mill a day across my 3 fed alts, so I cant complain.