diff --git a/src/Helpers/NumberHelper.php b/src/Helpers/NumberHelper.php
new file mode 100644
index 0000000..e09d2db
--- /dev/null
+++ b/src/Helpers/NumberHelper.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace AnourValar\LaravelAtom\Helpers;
+
+class NumberHelper
+{
+    /**
+     * Canonize
+     *
+     * @param int|float|string|null $amount
+     * @return int|null
+     */
+    public function encodeMultiple(int|float|string|null $amount): ?int
+    {
+        if (is_null($amount)) {
+            return null;
+        }
+
+        return round($amount, config('atom.number.multiple_round')) * config('atom.number.multiple');
+    }
+
+    /**
+     * Formatting (for display)
+     *
+     * @param int|null $amount
+     * @return float|null
+     */
+    public function decodeMultiple(?int $amount): float|null
+    {
+        if (! isset($amount)) {
+            return null;
+        }
+
+        return round($amount / config('atom.number.multiple'), config('atom.number.multiple_round'));
+    }
+}
diff --git a/src/resources/config/atom.php b/src/resources/config/atom.php
index 8bafc4f..9a44dd2 100644
--- a/src/resources/config/atom.php
+++ b/src/resources/config/atom.php
@@ -12,4 +12,9 @@
             'optimistic_transaction' => AnourValar\LaravelAtom\Strategies\OptimisticTransactionStrategy::class,
         ],
     ],
+
+    'number' => [
+        'multiple' => 100,
+        'multiple_round' => 2,
+    ],
 ];