Not every Canon body will have the same data but will be similar.
• Remaining capacity
This is the remaining capacity of the battery that is currently in your camera. This will show the percentage of charge remaining in the battery.
• Shutter count
This shows how many times the shutter was triggered for still images on this battery. Every time the battery is recharged the number is reset.
When the number on the shutter count starts dropping it is a sign the battery condition is starting to deteriorate.
• Recharge performance
This shows the battery’s condition.
Batteries will not last forever. It is estimated that a battery will last between 500 and 1000 recharge/discharge cycles.
There are many things that influences the life of your battery. One of the key factors that can affect battery life is recharging it before it is almost drained. Shooting a few images and then charging the battery will shorten its life far quicker than using the battery until it is almost drained and then recharging it.
Here's what the colored bars mean on the Recharge performance menu item.