In World of Warcraft when you kill a mob the experience earned for that mob is displayed Can Everquest 2 do the same thing with an add-on

you can download profitui which provides useful changes and addons to the user interface one displays you experience in a percentage. so you could see what percentage your on and then kill a mob and see your new percentage then you can compare. for example you could be on 56.7% kill a mob and go to 58.4% which means you would of gained 1.7%.