Not the arrows, the numbers are shown either +1 -1 or whatever it may be. Maybe its on the item maker.
I know I checked canned goods yesterday and the factory told me it was making +1 extra. When I checked the cannon factory, they were showing a decline of -3 as I was building quite a few ships. There are surplus and or deficit numbers to see just like in 2205.
Into chapter 4 now, still enjoying the campaign. :)
Started making hats and fur coats last night, so much logistics involved.