Compare productivity and accuracy using the right denominators

A fictional site measures completed order lines per productive picking hour and first-pass line accuracy. Each erroneous line counts once, even if it has multiple errors. Reworked lines remain in the original completed-line total. The two shifts below handled a similar product mix. Calculate both rates for each shift and compare them. These figures are exercise data, not industry targets.

Optional work sample for experienced associates: Written working is welcome. This is not a universal warehouse interview requirement.