How do i read anaylyze this profiler?

[system]

Please help me read this , for example
the percentages, what do they equal? does that 84.5 % mean? please note; I need deep details, I know this is regarding the cpu but in what context, does it mean 84 % of the cpu resources are being used? or? what exactly does this represent? and does it mean for the entire time its being called it sucks 84% of cpu resources or just for a second or? please explain every aspect

I need details and there is nothing found online in unity explaining.

what does
total column represent?
what does self column represent?
what does Calls represent?
what does time ms represent?

[McGravity]

It means that for that particular frame at which your cursor currently is positioned your CPU took 273.42ms to finish. 84% of that time was consumed by BulletFireScript.Fire() within 7 calls (method calls e.g.). Which makes 231.07ms of the complete frame. Only 0.10ms were consumed by itself (private methods e.g.) which is about 0% of the time the frame needed to complete.

So I’d say, that your Fire() method calls some heavy methods outside BulletFireScript. Maybe Instantiate?