Answer :
[tex]1 \% =\frac{1}{100} \\ \\25 \% =\frac{25}{100}=0,25\\ \\25 \% \cdot 68000 = 0,25 \cdot 68000 =17 000[/tex]
[tex]25\%\ of\ 68000= \frac{25}{100} \cdot 68,000= 25\cdot680=17,000[/tex]