WordPress expert needed: add code to WC products

We need a custom feature added to our WordPress (WC) website. We're using a plugin named Bundled Products. We need a feature added where it automatically calculates the total nutritional value at the bottom. See example: https://fuelmeals.com/meal/custom-meals/

Please send me a message with an idea of how you'd go about implementing this.

Fixed fee of $40 USD through PayPal