Ans:
Following is the formula to calculate Overall line Efficiency -
Line Efficiency (in %) = Line Output* Garment SAM / Manpower * Shift Hours * 100
Where,
The line output - The Line output is the overall number of items the line produces.
Garment Standard Allowed Minutes (SAM) - Standard minutes of a garment (including machine SAM and manual SAM)
Manpower - Total number of people working on the line in manpower (including all departments)
Shift Hours - Shift hours are the number of hours a factory is open each day.