PHPUnit and many other applications use floor.
Otherwise, the second-last lines would show 100% despite not being
complete.
```
\sprintf(
' %' . $this->numTestsWidth . 'd / %' .
$this->numTestsWidth . 'd (%3s%%)',
$this->numTestsRun,
$this->numTests,
\floor(($this->numTestsRun / $this->numTests) * 100)
)
```