How to remove taxes on cart transform(update line item price)

Hi, when I do function for cart transform to create new line item price or expand line item price. When I want to exclude taxes it not exclude taxes on new line item price. Only on price of product

  price: {
    adjustment: {
      fixedPricePerUnit: {
        amount: (
          cost.amountPerQuantity.amount *
          (procent/100) *
          rate).toFixed(2),
      },
    },
  },

@Liam-Shopify can you help us?

Did you try to use subtotalAmount instead of amountPerQuantity?

Yes, and it is sameā€¦remove taxes on Shopify product not on added values on update line item price. We are using example from Shopify github: