if we take 42600 as the 100%, how much is in percentage off of it, 25800?
[tex]\bf \begin{array}{ccll}
amount&\%\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
42600&100\\
25800&p
\end{array}\implies \cfrac{42600}{25800}=\cfrac{100}{p}\implies p=\cfrac{25800\cdot 100}{42600}[/tex]
