How to Analyzing bandwidth in cPanel
There are a few different methods that can be used to review. Your bandwidth usage from within your cPanel account.
The easiest and quickest way to check your current bandwidth. Would be to simply look onto the left hand side of your control panel. Once you have logged in, the statistics on the side of the cPanel will look like the following image:
You can also use the bandwidth application under logs within cPanel for a more detailed view of the bandwidth and what is taking up a majority of the bandwidth.
From here you can view the current bandwidth usage and the amount of traffic that your site has been receiving within daily, weekly and annual time-scales.