Running totals show how much has accumulated, while rates show how quickly it’s...

https://travissgreatthoughtss.swiftnestly.com/posts/what-units-do-i-get-when-i-integrate-a-rate-like-mm-per-hour

Running totals show how much has accumulated, while rates show how quickly it’s changing. With parcel deliveries, compare total parcels shipped this week with parcels per day. The time window and units help you read each number correctly.