YoY
Year over Year. Comparing this period to the same period last year, which handles seasonality and enables the phrase 'up 40% YoY' to appear in decks regardless of context.
Heard in the wild
“Maintenance costs are down 12% YoY after the retrofit.”
Tone check: Technical
The honest comparison for seasonal businesses. Watch for decks that switch between YoY and QoQ depending on which flatters.