multiply 675 by 0.25 to find 25% of 675. the answer would be 168.75
hope this helps!
[tex]\displaystyle\bf\\25\%~\text{of}~675=\\\\=25\% \times675=\\\\=\frac{25}{100}\times675=\\\\=\frac{1}{4}\times675=\\\\=\frac{675}{4}=\boxed{\bf168.75}[/tex]