Number of tickets purchased by first time ticket buyers in table

Hello!

I'm creating a table which has a variety of information in it that I need for our post-concert wrap ups.

The only column I can't get to work is "How many tickets first time ticket buyers purchased"

I currently use the formula below for the number of first time ticket buyers, but I would also like to know how many tickets those ticket buyers purchased.



Count([Constituent ID],IF(MIN(DDIFF([Days in Date],[Years in First Performance Date]))=0, MAX([Constituent ID]),NULL))



If I change Constituent ID to ticket count, the formula no longer works.

I can get the number using a different widget, but its a pain as it requires a manual filter and can only display one concert at once. And I'd like it to all be in one widget!

Wondering if anyone has any ideas?

Cheers, Nicola