with cte1 as (
select count(distinct(user_id)) as mau,
date_trunc('month', date) as month
from abakhytbekuly.users
group by date_trunc('month', date)
),
cte2 as (
select mau,
month,
lag(mau) over(order by month) as prev_mau
from cte1
)
select mau, 
month,
prev_mau,
100.0 * (mau - prev_mau) / prev_mau as pct_change
from cte2   
order by month