Поправил форму и добавил описание

aysat/lifecoding/SQL1.sql

@@ -16,22 +16,30 @@
 '''
 
 with monthly_users as (
-select count(distinct(user_id)) as active_users,
+     select 
-date_trunc('month', date) as month
+          count(distinct(user_id)) as active_users,
-from abakhytbekuly.users
+          date_trunc('month', date) as month
-group by date_trunc('month', date)
+     from 
+         abakhytbekuly.users
+     group by 
+         date_trunc('month', date)
 ),
-change as (
+  change as (
-select active_users,
+      select active_users,
-month,
+             month,
-lag(active_users) over(order by month) as prev_mau
+             lag(active_users) over(order by month) as prev_mau
-from monthly_users
+      from 
+          monthly_users
 )
-select active_users, 
+select 
-month,
+    active_users, 
-prev_mau,
+    month,
-100.0 * (active_users - prev_mau) / prev_mau as pct_change -- тут результат странный типа '-66.666666'
+    prev_mau,
-from change
+    100.0 * (active_users - prev_mau) / prev_mau as pct_change -- тут результат странный типа '-66.666666'
-where prev_mau is not null   
+from 
-order by month
+     change
+where 
+     prev_mau is not null   
+order by 
+     month