round up because of the 70, so you get 800
* * * * *
Correct argument, wrong number. 570 rounded up is 600, not 800.
570
570
570
570
570
600
It can't be rounded any further, so it is 570.
560
570
570
572 to the nearest ten is 570. 572 to the nearest hundred is 600.
572.0