Help with rounding formulas

[TriciaF]

I am trying to round a whole number to the nearest hundred ex 8490 need
to be rounded to 8500. How do I do this

 

[Dave Peterson]

=mround(a1,100)
if the analysis toolpak is loaded (tools|addins)

 

[Ron Rosenfeld]

I am trying to round a whole number to the nearest hundred ex 8490 needs
to be rounded to 8500. How do I do this?

=ROUND(A1,-2)


--ron