ME (Marker Efficiency)-It may be defined as the ratio of the total area of all pattern pieces in the marker to the total area of the marker plan. It is expressed in percentage (%).

ME = \(\cfrac{Total\, area\, of\, the\, patten\, pieces\, in\, the\, market}{Total\, area\, of\, the\, market\, plan}\times 100\)

Factors affecting marker efficiency:

1. Marker Planner- Marker efficiency is largely governed by experience, technical knowledge, honesty, sincerity of marker planner. 

2. Marker length- If marker length is higher than marker efficiency will be higher. Bigger marker length enhances more production in the cutting room. 

3. Fabric characteristics- Marker efficiency will be higher for symmetrical fabric. But if the fabric is asymmetric then the marker efficiency will be less. 

4. Marker making method- Maker efficiency will be higher for computerized method than obtained in manual method. 

5. Marker width- If the marker width is more, than marker efficiency will be more because patterns can be placed in the marker easily. 

6. Style of the garment- The larger patterns and less small patterns for a particular style of the garments reduce marker efficiency and vice-versa.