On my store, I need to calculate Subtotal Price and Grand Total Price after choose one of the options below. I'm using One Step Checkout. When I change the payment method, Magento performs an ajax on savePaymentMethod. I need execute this ajax on dropdown change and recalculate prices.

  • Option 01 - increment 1%
  • Option 03 - increment 2%
  • Option 06 - increment 3%
  • Option 10 - increment 4%

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