A mix change is a change in the composition of the agency's workload. Such activity
can cause a substantial plus in workpower needs. To calculate the magnitude of the
workpower requirement, the agency needs to maintain sufficient data of changes occurring
during the fiscal year so as to predict as accurately as possible the added time or
savings in time (in minutes) per case required by the mix change. A mix change results
when the percentage of one type of claim in the workload varies significantly from
the base year. If there has been no actual experience with the mix change, then a
carefully studied estimate of additional or fewer minutes per case needs to be prepared.
Document fully the assumptions made by calculating changes in case time. It is possible
to experience time savings in minutes per case, however, most mix changes usually
result in additional time per case.