Answer
$ 25\%$
Work Step by Step
Typical percentage problem:
What percent ($n$, as a decimal number) of (the base amount $y)$ is $x?$
Translated:$\quad n\cdot y=x$
---
Here, What percent ($n$, as a decimal number) of (y=76) is (x=19)$?$
Translated:$\quad n\cdot 76=19$
... divide with 76
$ n=0.25\qquad$ .... convert to percent notation,
( move the decimal point two places to the right and write a percent symbol.)
$= 25\%$