# Changelog ## [Unreleased] ### Added - **Cartes report**: help tooltip on the savings-rate KPI explaining the formula — `(income − expenses) ÷ income × 100`, computed on the reference month (#101) ### Changed - **Category zoom report** (`/reports/category`): the category picker is now a typeable, searchable combobox with accent-insensitive matching, keyboard navigation (↑/↓/Enter/Esc) and hierarchy indentation, replacing the native `