We can solve this question by applying the rule of three:
[tex]\begin{gathered} \text{ \$37.92 ------- 100\%} \\ \text{ \$7.08 ------- x } \end{gathered}[/tex]
By cross multiplying these values, we have
[tex]\text{ \$37.92 }\times x=\text{ \$7.08 }\times\text{ 100\%}[/tex]
since we need to isolate x, by dividing both sides by $37.92, we get
[tex]x=\frac{\text{ \$7.08}\times\text{ 100\%}}{\text{ \$37.92}}[/tex]
So, x is given by
[tex]x=18.67\text{ \%}[/tex]
Therefore, by rounding to the nearest whole percent, the answer is 19 %
