<?php
 
$price = 24.5;
$discountPrice = 7.35;
$discount = $price - $discountPrice;
 
printf(
	"DISC: %.53f\nPRIC: %.53f\nACTU: %.53f\n N_F: %.53f\nROUN: %f\n\n", 
	$discount, 
	$price, 
	(100 * $discount / $price),
	number_format((100 * $discount / $price), 13),
	(100 * $discount / $price)
);
 
printf(
	"DISC: %.53f\nPRIC: %.53f\nACTU: %.53f\n N_F: %.53f\nROUN: %f\n\n", 
	$discount, 
	$price, 
	(100 * $discount / $price), 
	number_format((100 * $discount / $price), 14),
	(100 * $discount / $price)
);
 

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