GitHub LFS Usage

I already understand how LFS works and the benefits of using it. My question now concerns actions (pushes, pulls, etc.) and the use of “Storage” and “Bandwidth” in github, which action uses which of these resources? ex: Pushes use storage… I need to understand how this works to have control over how much I consume.

Another question is: How is my bandwidth limit 1gb and I used more than 4gb?