protected function makeCalculations(Collection $applicants): Collection 	{ 		if (!$applicants->isEmpty()) { 			$totalCount = $applicants[count($applicants) - 1]->applicants_count;  			foreach ($applicants as $applicant) { 				$applicant->average = round(($applicant->applicants_count / $totalCount) * 100); 				$applicant->average_px = round(self::DIV_WIDTH_PX * ($applicant->applicants_count / $totalCount)); 				$applicant->type = $this->version; 			}  			$applicants->pop(); 		}  		return $applicants; 	}