If you want to compute a certain percentage of a number - say x% of y - you simply have to compute
[tex]\dfrac{x}{100}\cdot y[/tex]
In your case, you want 3/5% of 92, so we have
[tex]\dfrac{\frac{3}{5}}{100}\cdot 92 = \dfrac{3\cdot 92}{500}=\dfrac{276}{500}=0.552[/tex]
Which yields 0.55 when rounded to the nearest hundredth.
