Conditional If Statement with percent

Hi everyone-

I'm trying to figure out the formula that will place the word "yes" if cell A is less than 25% of cell C.

For example, "Yes" if cell A1 (Quantity in stock) is less than 25% of C1 (Quantity in reorder), or "No" if this condition is no met.

Values:

A1-325
B1-??
C1-1000

if you want to hard code it, you can use this..

=IF(A1/C1<0.25,"Yes","No")

325/1000 is 33% percent so it would be No correct?