Winding
Clearing costs 3.5% of the winder and 0.03% of the yarn. The cost is time, not material.
— 1/100 km
All four channels combined
Cut rates are inputs from the clearer's own reporting, not predictions - no calculation derives them from thresholds, because that depends on the fault distribution of the specific yarn. Faults present should come from a Classimat or equivalent classification of the same yarn, and the two must be measured over comparable lengths for the clearing efficiency to mean anything; a clearing efficiency above 100% means the two figures came from different material or different fault definitions. Cut length varies with clearer type and with the fault length detected, so the waste figure is indicative. Production loss counts splice cycles only and excludes the ramp back to full winding speed after each restart, which adds a smaller further loss. Splices per package assume all cuts occur while that package is being built, which is true on average and not for any individual cone.
Yarn Clearer Cut Rate, Splice Load & Clearing Efficiency — free, with the formula and a worked example, at Textile School.