Don't know who you are replying to here. Me, Stan, I'm the one with 88kgs and I know how to do the maths, so you can't be talking to me.
I also posted, how to do this on a different thread, a similar formula using lbs /foot as most of us still weigh ourselves in stones and pounds. (can't find the post now it was a week or two ago.)
And, I agree jumping on the end of a breaker bar is not a good idea as you will overtighten it that way.
Formula in ft/lbs as follows:
You want to get to 362 ft/lbs at the nut.
So take your weight in lbs and divide 362 by that.
So if you weigh 11 stone, that is 11 x 14 =154 lbs.
Divide 362 by 154 = 2.35
So you need to stand on your breaker bar plus extension tube if necessary, at 2.35 feet from the centre of the hub. (.35 x 12 = 4.2)
so 2'4.2"
Whichever way you do it, just keep pushing on the breaker bar until gets too hard then position the bar where you can step onto it carefully and do that until the bar stops moving. Then stake the nut.
Either way you'll need to do a tiny bit of maths. depends on your scales I suppose!
Cheers
Stan!