Learn how a running total differs from a rate of change with parcel counts: 240...

https://zandersnewop-ed.lucialpiazzale.com/when-should-i-use-a-step-graph-instead-of-a-line-graph

Learn how a running total differs from a rate of change with parcel counts: 240 parcels delivered by noon is a total, while 30 parcels per hour from 10 to 11 a.m. is a rate. Units and time windows make dashboard numbers easier to read.