Well to start with i am showing default custom option(Purity) price using the link's code
http://sunflowerwww.net/magento-custom-product-option-default-value/ through this i am able to show the default price.
There are to options 14 & 18, now i have made 18's price default on product page. The issue for me is the base price and default custom price add up. I don't want added price rather i just want to show the default custom price.
Please take look http://hottech.in/Royal.png
I googled it but found nothing related to this, i am not able to locate the product listing file. waiting for some inputs
Thanks & Regards
1. Add simple product and keep its base price default price "0(zero)". Add other fields and proceed.
Goto Custome Option tab, add your custom option (i.e) add title "Size", select radio button for Input type .
Add Option size (i.e. 14, 18) and price 45, 55 respectively and save your configuration.
2. After the process install module from here.
Download setup and paste all file in your magento setup. Goto adminpanel and all clear cache.
Goto Menu >> Product Options >> Manage Optioned Products, here there would be product list which would show added custom products.
Edit product and select option (i.e. 14) which you want to display on front end as default option, then save configuration.
Let us know if you face any query/concern regarding this.