The data returned here does not see where the transaction amount can be queried
https://developer.apple.com/documentation/appstorereceipts/responsebody
Validating Receipts with the App Store How to get the payment amount?
You are at least the third person to ask this question in the last week! Why, do you all work at the same place? Is it a homework exercise?
Anyway, the answer is still NO, you cannot get the payment amount from the app store receipt.