[Shopping basket] Discount is not calculated correctly

[tanjaq]

Describe the bug
With discount amounts over 1000, the discount calculation is not correct.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'https://moonavoor.ee/est/tooted/tapeedid/rasch-textil/bloomsbury---uus/fototapeet-duncan-terra-302836302867/'
2. Add 99 product to the shopping basket
3. Open the shopping basket
4. Scroll down to the bottom
5. ALE -15% shows incorect amount -7 €

Expected behavior
ALE -15% should have discount amount of -7 722€

Screenshots

Logs
Request URL: https://moonavoor.ee/ajax/id:12444/action:changeAmount
Request Method: POST
Payload:

• basketProductId: 71420246cdba00dc0c521707f29caad6
• productAmount: 99

Response:

responseData
 shoppingBasketData
    discountsList:
      amount: "7.00"
      code: "discount131231"
      id: 131231
      title : "ALE -15%"

Desktop (please complete the following information):

• OS: Windows 11
• Browser - Chrome Version 119.0.6045.159

Additional context
Problem seems to be on the backend calculation side.