Economics · INTERACTIVE LAB

Change & index explorer

Distinguish percentage change, an index and percentage points.

Local computationExplained methodNo account

Before you start

Enter positive starting and ending values; optionally two percentage rates.

The answer and the path to it
  1. 01Inputs
  2. 02Model
  3. 03Check
What this model can do

An index is based on 100 at the starting point. Percentage-point difference applies to the optional rates, not the value difference.

More tools: EconomicsPrepare an AI self-test