Most owners feel the pain of downtime but never see the yearly number. Plug in your own figures — nothing leaves your browser — and find out.
Rough inputs are fine — the goal is the order of magnitude, not the penny.
How it's figured: weekly cost = downtime hours × (idled workers × labor rate + lost profit per hour), annualized over your operating weeks. It's a planning estimate, not accounting — but it usually opens eyes.