Significant Figures
"AT&T saw its overall revenues fall slightly from $41.8bn last year to $41.7bn now."
That's the essentially same number; the supposed delta hardly reaches the lofty heights of "fall slightly".
Given all the arbitrary judgments (selected from those permitted), business decisions, estimations and perfectly-reasonable assumptions that go into financial reporting, 0.9976 is actually the same as 1.000.
They could do the books again, and come up with $41.9 if they wished.