Price attributes calculated as a percentage

[Paolo68]

I have change the file PRODUCT.JS and PRODUCT.PHP to

calcolate the price with percent of the field $attribute_price

if ( $attribute_price > 1 || $attribute_price < -1 || $attribute_price == 0){

$price += $attribute_price; } 

else {

$price = $price + ($price *(float)$attribute_price); 

}

 

Everything works well, in increst price attribute use the value 0 (50% = 0.50) 

But I can not use percentage-point why are rounded to 2 decimal places. Where I can change the code to take a (float) price of attribute ??