Is there a way to fetch the price paid by a use for a subscription event ?

Hi I would like to know if there is a way to get the price/amount paid by a user for an event using API Specs.

I'm currently using the /profiles/ endpoint to get user information. But it doesn't return the amount paid, not even in the "subscriptions" sub-object.
I think it would be a useful information especially if a user uses a promotional offer.

If there is already a way to do so, please let me know.
Thank you.

Thibault M.