Change Price Calculation from rounding to ceil (means if price 0.0001 then it will become 1.00)

price
price-format

(Karangar Meghnathi) #1

I need to change Price calculation. Default Magento price calculates rounding with 2 precision.
But I need to change price rounding calculation from round to Ceil (PHP function). Its Means if price 0.0001 then it will become 1.00

Please help me. How can I do it.