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I need plugin/component to calculate transportation cost in building virtuemart shop.
How it should work:
- registered user has field with preinserted postal code xx-xxx (possible to change), unregistered - blank field to insert.
- after submiting postal code new application will calculate transportation cost (wieght/size, distance, given cost/kilometer) and show in a product comparison chart as a new column.
Please give details about your experience and price