Rounding Down to Nearest 1/8

[L.sean9]

Hi,
I need some assitant with rounding to the nearest 1/8. I used =mround(a1,0)*0.125. It does round but I need the formula to round if it is negative. For example.

-1.335 = -1.25
-1.449= -1.375
-1.502=-1.5

Any Help!!!!!!!!!!!!

Thanks,
Sean

[shg]

=TRUNC(A1 * 8) / 8