Progress concerns itself with change: what direction and how fast? It is not so important where things were, are, or will be, but rather how the struggle between inertia and change seesaws over the course of the story.
Excerpted from The Zen of Story Structure
DEFINITION: Progress: the way things are going.
SYNONYMS: flowing, advancing, proceeding, moving forward, developing step by step, graduated, staging, successive, procession, the way things are going.
DYNAMIC PAIR: The Future, what will happen or what will be.