class.php

<?php

public function verify() {	
	
	$statistic = $this->getStatistic();
    if ($statistic) {
		if ($statistic->getTotalCount() === 0) {
			$incident = IncidentFactory::CtIncident();
            $incident->registerIncident();
        } else {
            $failurePercentage = $statistic->getFailCount() / $statistic->getTotalCount() * 100;

            if ($failurePercentage > 40) {
				$incident = IncidentFactory::CtIncident();
                $incident->registerIncident();
            }
        }
	}
}

I'd probably at least rewrite it like this:

<?php

public function verify() {  
    $statistic = $this->getStatistic();

    if (!$statistic) {
        return;
    }

    if ($statistic->getTotalCount() === 0 || $statistic->failurePercentage() > 40) {
        IncidentFactory::CtIncident()->registerIncident();
    }
}

Treat the falsey check like a guard clause and handle it separately at the beginning of the method, move the logic for calculating the failure percentage right into the statistic since it holds all the relevant data, and make it all a single compound conditional to avoid duplicating the incident factory stuff.

Awesome! Thank you so much!