[
{t_id :"1", val1 : "1" , title:"cash to purchase", unit :"bag"},
{t_id :"1" ,val1 : "1" , title:"cash to purchase", unit :"bag"}
{t_id :"1",val1 : "1" , title:"cash to purchase", unit :"bag"}
{t_id :"2",val1 : "4" , title:"offload", unit :"bag"},
{t_id :"2",val1 : "5" , title:"onroad", unit :"bag"},
{t_id :"3", val1 : "5" , title:"Onroad", unit :"bag"},
{t_id :"3", val1 : "6" , title:"Onroad", unit :"bag"},
]
I want to group by t_id and find the sum of val1 according to each t_id and divide the val1 by total number of t_id .... eg: there are three t-id 1 in the array and sum is of three t_id is 3(val1)..so the val1 must be 3/total t_id( ie 3/3)...
then i want out on my HTML like
Title:cash to purchase
bag:1 (ie(3/3)
Title:Offload
bag:4.5 (ie 9/2)
title:onroad
bag:5.5 (ie 11/2) ...were 2 is total t_id
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