5 ms·
It's calculated year-over-year by matching months because there are significant seasonal effects, so you can't easily go from YOY to figure how it changed month
by hcs 6y ago
It's calculated year-over-year by matching months because there are significant seasonal effects, so you can't easily go from YOY to figure how it changed month-to-month.
- FabHK 6y agoGood point. However, that also means that if there is a one-off drop of, say, 10%, then newspapers could report a "10% drop YOY" in 12 successive months.