I have cascading custom field which had values as numbers. It is the total amount. Now when I use some amount out of it then in remaining custom field the updated value should be added. So say my total amount is 2000000 and I used 1000000 then remaining custom field should show 1000000 and next time when any user logs in then remaining for him should be 1000000 and similarly he will consume some and then that should be updated. How can I achieve this. How can I deduct the amount and save it for future use also in Jira. Kindly guide me to achieve this
