5.3 Year-Over-Year Comparison Attributes #23
Description
Effort: M
What: Add attributes to category sensors showing "same month last year" spend. Helps answer "am I spending more on groceries than last March?"
Implementation: Read from HA's statistics database (populated by 5.2 backfill or accumulated over time by 5.1). No additional API calls at refresh time.
Attributes: last_year_actual, yoy_change_amount, yoy_change_percent.
🔗 Dependency: Requires 5.1 (statistics enabled) and benefits greatly from 5.2 (backfill). Without backfill, only works after 12+ months of the integration running.