Review PHP cost calculator code and advise where cost values are coming from

Job ID: 36080360

Budget: $10 – $30 AUD

I have a cost calculator on my website that uses the woocommerce plugin. There are no pricing tables in woocommerce, I assume the calculator uses custome php code but I don't know where it is getting the values from. I need to adjust the values but not sure where I can access them
Related categories: PHP WordPress Software Architecture MySQL WooCommerce