select t.product_id, round(if(count(1)!=0,sum(if_click)/count(1),0),3), round(if(sum(if_click)!=0,sum(if_cart)/sum(if_click),0),3), round(if(sum(if_cart)!=0,sum(if_payment)/sum(if_cart),0),3), round(if(sum(if_payment)!=0,sum(if_refund)/sum(if_payment),0),3) from tb_user_event e join ( select distinc...