See how a running total differs from a rate of change using parcel deliveries:...

https://www.lima-bookmarkings.win/learn-to-tell-a-running-total-from-a-rate-of-change-with-parcel-deliveries-120

See how a running total differs from a rate of change using parcel deliveries: 120 parcels by noon is a total, while 15 parcels per hour describes a pace. The article shows how units and time windows make dashboard numbers easier to interpret.