How to change price based on number of attributes?

I am using Woocommerce with WordPress. How do I calculate pricing based on number of attributes selected as shown in the image. E.g. the current order should amount to Rs. 9100 as there are 9 attributes priced at Rs. 1000 each and Rs. 100 for the product base price.

Overall quantity for the product always is one.
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2 comments

  1. I was able to solve the problem by using Gravity forms and Gravity forms addon for woocommerce.

    Next I created added multiple product fields which automatically come with quantity field and finished with the total field.

    Next I created a product with and integrated it with gravity form I just created.. voila..

    Edit: if you guys have any other creative of doing this. Please answer below.