title: How to update a column in laravel migration file which will be multiplied by 100
body: <p>in my table 'number' column, there i want to modify the column multiplied by 100. the column is decimal type.</p>
  <pre><code>public function up()
      {
          Schema::table('users', function (Blueprint $table) {
              
              DB::statement('ALTER TABLE users MODIFY number*100 Decimal(11,4) null');     
              
          });
      }
  </code></pre>