Downtime
- Unplanned downtime: hours a month the line is stopped when it should be running. Leave out planned changeovers and maintenance. Use your downtime log, or a supervisor's best estimate.
- Value of one lost line hour: the profit lost when output isn't made, not the wages of people standing idle. Ask your finance lead. If no one knows, try £300 to £600.
- Expected reduction: starts at 66.5%, the LEAP modelled example. Slide it to 25% to 40% for a cautious view.