Hi everyone
Please forgive me if there is a really simple solution to this, but I'm very new to Dynamics and haven't quite found my way around it yet!
The image below shows details of a grouped View on our Transactions entity, showing donations made by various people over time. Whilst these people only have one donation, some people have made many donations.
What I've been asked to do is to add a SUM total of each person's donations, but I'm unsure how to do this.

So, for example, under Alan I'd like it to show a SUM of £343.30, under Alan W a SUM of £100.00 etc.
Any help with finding a solution would be much appreciated. Thank you.
Jon