Mass update

_incl_data/class/Insallah/Math.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace Insallah;
+
+/** All raw mathematics in one place. */
+class Math
+{
+    /**
+     * @param float|int $total
+     * @param int|null  $number
+     * @return float
+     */
+    public static function getPercentage($total, int $number): float
+    {
+        return $total > 0 ? round(($number * 100) / $total, 2) : 0;
+    }
+
+
+    public static function get100Percentage($total, int $number)
+    {
+        return min(self::getPercentage($total, $number), 100);
+    }
+
+    /** Number-20% and Number+20% */
+    public static function get20PercentRange($number): array
+    {
+        return [
+            'min' => $number * ((100 - 20) / 100),
+            'max' => $number * ((100 + 20) / 100),
+        ];
+    }
+
+    public static function addPercent($num, $percent)
+    {
+        return $num + (($percent / 100) * $num);
+    }
+}