Conditional Formatting if last two digits are not equal to

[03856me]

I have some payroll hours that need to end in quarter numbers (.25, .50, .75, .00). Is there a way to highlight hours that DON'T end in these four values? Conditional formatting? I know how conditional formatting works but I am unsure how to write this in a formula. Any help would be really appreciated.

 

[steve the fish]

Something like:

=FLOOR(A1,0.25)<>A1

 

[03856me]

PERFECT!! Never used FLOOR before, that's a new one.....appreciate your help and prompt reply