Learn how a running total differs from a rate of change with parcel counts....

https://www.pop-bookmarks.win/this-article-explains-how-a-running-total-differs-from-a-rate-of-change-using

Learn how a running total differs from a rate of change with parcel counts. “120 parcels by noon” is a total, while “15 parcels per hour” is a rate. The article shows how units and time windows help you read a work chart and compare what happened.