presentasi.php

<?php

$data = [];

$data = [
			[
				"title"=>"PKS",
				"total"=>100
			],
			[
				"title"=>"Gerinda",
				"total"=>30
			]
		];

foreach($data as $value){
	$arraysum[] = $value["total"];
}

$hasilarraysum =  array_sum($arraysum);
	
foreach($data as $value){
	$hasil = $value["total"]/$hasilarraysum*100;
	$hasilFormat = number_format($hasil);
	echo "persentase partai ".$value["title"].": ".$hasilFormat."% <br>";
}

echo "<br>ini contoh lainnya <br>";

$jumCowok = 5;
$jumCewek = 7;

$total = $jumCowok + $jumCewek;

// menghitung prosentase laki-laki dan perempuan

$prosenCowok = $jumCowok/$total * 100;

$prosenCewek = $jumCewek/$total * 100;

$angka_cowok = number_format($prosenCowok);
$angka_cewek = number_format($prosenCewek);

echo "jumlah laki-laki : ".$angka_cowok."%<br>";
echo "jumlah perempuan : ".$angka_cewek."%<br>";