Hello,
Based on your explanation and desired skills asked, I would like to update you that I have extensive experience in designing & developing eCommerce websites using eCommerce platform like using Magento, Prestashop, osCommerce, BigCommerce, WP-Commerce, Woo-Commerce, OpenCart, CS-cart, Zen-Cart and will surely help you to develop Pricing calculator and E-commerce website as per your business scope.
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Regards,
Kaushal