See how a running total differs from a rate of change using daily parcels as an...

https://harperscooldigest.urbanvellum.com/posts/why-do-i-get-parcels-per-hour-instead-of-just-parcels

See how a running total differs from a rate of change using daily parcels as an example. A total counts packages delivered so far, while a rate shows parcels per hour or day. Clear time windows and units make shipping charts easier to read.