Learn how running totals differ from rates of change with parcel counts. A...

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

Learn how running totals differ from rates of change with parcel counts. A total tracks parcels per day; a rate shows parcels per hour. See how units and time windows clarify a dashboard, so you know if volume grew or delivery really sped up today.