Advantage Calculator

The Advantage Calculator extends the motivational value of the Annual Summary by framing contributions in terms of concrete societal and organizational benefit rather than raw counts. For peer mentors, seeing that their volunteering hours equate to a specific monetary or professional support equivalent creates a sense of professional identity and pride that raw statistics alone do not deliver. For organizations, the shareable output supports volunteer recruitment communications: coordinators can reference calculated impact figures when making the case to prospective volunteers. The feature is explicitly scoped to the Achievements & Gamification area in the Phase 3 roadmap and is a natural complement to the badges and annual summary features.

The calculation engine applies configurable impact multipliers to activity type counts - for example, mapping one home visit to a defined number of equivalent professional support hours. Multipliers are defined in organization configuration and updateable without an app release, supporting the multi-tenant label and configuration system. In Flutter with Riverpod, the feature is a single AdvantageCalculatorScreen backed by an AdvantageCalculatorService that performs the computation either locally from cached activity data or via a lightweight API endpoint. The screen must support both automatic population from the user's history and manual input for exploratory scenarios. All numerical outputs must be paired with descriptive text labels for screen reader accessibility, and the calculation methodology must be disclosed via an accessible info element so results are transparent.