A running total tells you how many parcels have arrived so far, while a rate of...

https://www.bookmark-suggest.win/compare-running-totals-with-rates-of-change-through-parcel-deliveries-parcels

A running total tells you how many parcels have arrived so far, while a rate of change shows how many arrive per hour. This article explains how units and time windows help you tell those numbers apart and use them with confidence.