/**
  * @param Panel $panel
  */
 public function processVotingResult(Panel $panel)
 {
     $voting = $panel->getCurrentVoting();
     $votesCount = 0;
     foreach ($voting->getVotingOptions() as $votingOption) {
         /** @var \Visol\EasyvoteEducation\Domain\Model\VotingOption $votingOption */
         $votesCountForVotingOption = $votingOption->getVotes()->count();
         $votingOption->setCachedVotes($votesCountForVotingOption);
         $votesCount = $votesCount + $votesCountForVotingOption;
         $this->votingOptionRepository->update($votingOption);
     }
     $this->persistenceManager->persistAll();
     // $votesCount is complete
     foreach ($voting->getVotingOptions() as $votingOption) {
         /** @var \Visol\EasyvoteEducation\Domain\Model\VotingOption $votingOption */
         if ($votesCount > 0) {
             $votingResult = round($votingOption->getCachedVotes() / $votesCount, 5) * 100;
             $votingOption->setCachedVotingResult((int) $votingResult);
         } else {
             $votingOption->setCachedVotingResult(0);
         }
         $this->votingOptionRepository->update($votingOption);
     }
     $this->persistenceManager->persistAll();
 }