<?php

	$percentual_total="";
	$array = array('4.75', '1.5', '0.75');
	
	$total = '7.0';
	
	
	
	      foreach ($array as $tem => $key) {
	
	      $percentual = round(($key / $total) * 100);
	
	      $percentual_total .= "Tempo: " . $key . ", Percentual: " . $percentual . "\n";
	}
	
	 echo $percentual_total;