---
title: Test a Supplier Price Rise Against Its Own Index — Free
description: Paste old and new prices with the input index your supplier cites, and read which increases track the index and which do not.
category: business
last_verified: pending
freshness: unverified
published: 2026-09-20
canonical_url: https://gratis-ai.pages.dev/articles/supplier-price-increase-justification.html
companion_app_url: https://gratis-ai.pages.dev/apps/supplier-price-increase-justification.html
reading_time_minutes: 4
tags: supplier, pricing, index, business
---

# Test a Supplier Price Rise Against Its Own Index — Free

Paste old and new prices with the input index your supplier cites, and read which increases track the index and which do not.

**Free and complete.** This guide is a standalone free tool — no account, no card, anywhere. The only paid option is one optional extra outcome: $9 one-time. Nothing in the free tier is gated.

## Who it's for

Anyone seeking practical 100% free AI workflows — no paid API keys, credit cards, or subscriptions

## What's free

- one complete variance sheet
- index movement beside actual increase
- state link for a buyer

## Optional paid add-on

**$9 one-time.**

- four supplier letters kept on this device
- printable negotiation sheet by line
- CSV of product, old price, new price, variance

## Sources & verification

- Tool: GratisAI local-first instrument (no key, no account)
- Primary source: the free tool itself (local-first, no external dependency)
- Last verification: pending (marked unverified, not assumed current)

## Use it

- Interactive guide: https://gratis-ai.pages.dev/articles/supplier-price-increase-justification.html
- Companion app: https://gratis-ai.pages.dev/apps/supplier-price-increase-justification.html
- This machine-readable mirror: /mirrors/supplier-price-increase-justification.md

*Generated free at https://gratis-ai.pages.dev/articles/supplier-price-increase-justification.html — every guide on GratisAI is a complete, working tool. $0, no account, no card, anywhere.*