The key to understanding the question is to keep the details at the fore.
Percentage = 25%
Amount = 230
Our answer to the estimation is given by the formula:
[tex]\begin{gathered} \text{Percentage }\cdot\text{ Amount = 25\% }\cdot\text{ 230} \\ =\frac{25}{100}\cdot230=\frac{25\cdot230}{100} \\ =57.5 \end{gathered}[/tex]
