You can put this solution on YOUR website! That means, round to this place indicated by "P": 0.00XXPX
and to use three significant figures.
0.005998 to three significant figures becomes . Rounding needed to go UP because the 8 is 5 or higher, so the 9 must go UP but no more digits, so use 0, and the next 9 must go up also. I could explain at greater length using place by place rounding, but I want to avoid doing that.
How much error, you want to find.
Difference = , which is positive.