8498.
Although personally, I would round 8500 to 8000 so as to avoid introducing an upward bias from always round up from 5.
Anything from 2500 to 3499
5500
7.60
0.4
496
550000 to 649999
Anything from 2500 to 3499
5500
7.60
8000
It is 600000, as in the question!
0.4
496
The answer is 248,700
620 would become 600 if rounded to the nearest 100.
1.049 rounded to the nearest hundredth would become 1.05
If 13.3 is a % already, it is already rounded. If 13.3 needs to become a percentage, it would be 1330, and this is also rounded to the nearest tenth (and more)