Hi,
is not a good thing to do tha same calculation on the server side different time because it will impact the performance of the page. Luckily WooPriceCalculator has another way to achieve that without loosing performance.
You can use output fields to display in your case the non-discounted price. The steps to do that:
1)Create an excel file with the logic you want to implement
2)Create a calculator starting form excel file
3) Do the right mapping to insert this time the output field
For more information check our documentation site , you can check our videos too.
Best regards,
Naidi
AT236