Use parcels to see how a running total differs from a rate of change. A weekly...

https://activecalculus.org/author/Running-Totals-Rates-of-Change

Use parcels to see how a running total differs from a rate of change. A weekly count of 120 parcels isn’t the same as 20 per day. See how units and time windows help you read a work dashboard clearly, without confusing total volume with pace.