Translate the Question into a Proportion $\frac { a } { 43.4 } = \frac { 62 } { 100 }$

Translate the question into a proportion. Do not solve.
-62% of what number is 43.4?

A) $\frac { a } { 43.4 } = \frac { 62 } { 100 }$
B) $\frac { a } { 62 } = \frac { 43.4 } { 100 }$
C) $\frac { 62 } { b } = \frac { 43.4 } { 100 }$
D) $\frac { 43.4 } { b } = \frac { 62 } { 100 }$