Hello,
I've tried to use this formula but it isn't working: I'm trying to calculate the % change MOM for count of customers. This using Shopify orders datasets.
(COUNT(DISTINCT CASE WHEN ((year(`processed_at`)=year(curdate())) AND (month(`processed_at`)=month(CURDATE()))) THEN `customer_id` END)
/
COUNT(DISTINCT CASE WHEN month(curdate()) = 1 THEN CASE WHEN year(`processed_at`) = year(curdate()) - 1 AND month(`processed_at`) = 12 AND DAYOFMONTH(`processed_at`) <= DAYOFMONTH(curdate()) THEN `customer_id` END ELSE CASE WHEN year(`processed_at`) = year(curdate()) AND month(`processed_at`) = month(curdate())-1 AND DAYOFMONTH(`processed_at`) <= DAYOFMONTH(curdate()) THEN `customer_id`END END)) -1
Any help would be amazing. I would love for it to look like this:
| processed_at | Count of Customers | MOM Test |
| 2019-Aug | 14,182 | 0 |
| 2019-Sep | 13,296 | -6.2% |
| 2019-Oct | 12,696 | -4.5% |
| 2019-Nov | 15,139 | 19.2% |
| 2019-Dec | 24,438 | 61.4% |
| 2020-Jan | 20,409 | -16.5% |
| 2020-Feb | 18,516 | -9.3% |
| 2020-Mar | 27,727 | 49.7% |
| 2020-Apr | 57,895 | 108.8% |
| 2020-May | 67,365 | 16.4% |
| 2020-Jun | 61,438 | -8.8% |
| 2020-Jul | 36,652 | -40.3% |
