Methodology · AU-PAY-015
How the Inflation Calculator works
This page documents how the Inflation Calculator produces its figures: the engines and formulas it runs, the rule packs it reads statutory values from, the official documents those packs cite, and how the engines are verified. Official sources were last retrieved on .
Engines and formulas
- E04 · Compensation engine
Package decomposition base = package ÷ (1 + r), capped by the maximum contribution base, with an iterative §12.1.7 verification path.
Registered formulas: F-PAY-001 package decomposition
Rule packs
Statutory values come only from versioned, hash-verified rule packs citing official sources. Current status of the packs this calculator can use:
- au-cpi-quarterlyactive · v0.1.0
- Statistical table G1 — Consumer Price InflationReserve Bank of Australia (data: Australian Bureau of Statistics) · retrieved 2026-08-21
Verification
Engines carry boundary tests at every bracket edge, property-based tests, reconciliation invariants and, where official worked examples exist, tests that reproduce them exactly. The full source register is on the sources page.