How to remove decimal price in magento

• Open  code/core/Mage/Directory/Model/Currency.php
•  Find the following :-

 public function format($price, $options=array(), $includeContainer = true, $addBrackets = false)

    {

        return $this->formatPrecision($price, 2, $options, $includeContainer, $addBrackets);

    }


on line no 194

change this code to:-

 public function format($price, $options=array(), $includeContainer = true, $addBrackets = false)

    {

        return $this->formatPrecision($price, 0, $options, $includeContainer, $addBrackets);

    }