Calculate avg() within laravel model and pass it to controller - php

Question

I want to calculate avg in laravel using three table joins I've joined the tables perfectly and got the response from it but now I want to calculate the avg as well as count from the response I have got and then pass it to API response what should I do to achieve this?
Query i have tried
$individualScore= StatisticsMaster::with(['ratings',])->where('ratingsFor',$request->profileId)->get();
StatisticsMaster.php
public function ratings() {
return $this->hasMany(StatisticsChild::class,'statisticsMasterId','statisticsMasterId')->with('score');
}
StatisticsChild.php
public function score() {
return $this->belongsTo(Skill::class,'skillId','skillId');
}
public function getSkillNameAttribute(){
return $this->score->skillName;
}
DB Structure I have
tblSkills
->skillId
->skillName
->skillStatus
tblStatisticsMaster
->statisticsMasterId
->ratingsFor
->ratingsBy
->status
tblStatisticsChild
->statisticsChildId
->skillId
->statisticsMasterId
->individualScore
->statisticsStatus
I have got this response
{
"meta": {
"code": "200",
"message": "Skill Fetched Successfully."
},
"data": {
"skills": [
{
"statisticsMasterId": 1,
"ratingsFor": 1,
"ratingsBy": 6,
"score": 60.8,
"ratings": [
{
"skillId": 1,
"individualScore": 86,
"statisticsStatus": 1,
"skillName": "Shooting"
},
{
"skillId": 2,
"individualScore": 70,
"statisticsStatus": 1,
"skillName": "Dribbling"
},
{
"skillId": 3,
"individualScore": 54,
"statisticsStatus": 1,
"skillName": "Passing"
},
{
"skillId": 4,
"individualScore": 44,
"statisticsStatus": 1,
"skillName": "Defense"
},
{
"skillId": 5,
"individualScore": 50,
"statisticsStatus": 1,
"skillName": "Good Teammate"
}
]
},
{
"statisticsMasterId": 2,
"ratingsFor": 1,
"ratingsBy": 2,
"score": 52,
"ratings": [
{
"skillId": 1,
"individualScore": 50,
"statisticsStatus": 1,
"skillName": "Shooting"
},
{
"skillId": 2,
"individualScore": 50,
"statisticsStatus": 1,
"skillName": "Dribbling"
},
{
"skillId": 3,
"individualScore": 60,
"statisticsStatus": 1,
"skillName": "Passing"
},
{
"skillId": 4,
"individualScore": 50,
"statisticsStatus": 1,
"skillName": "Defense"
},
{
"skillId": 5,
"individualScore": 50,
"statisticsStatus": 1,
"skillName": "Good Teammate"
}
]
}
]
}
}
and the response I want.
{
"meta": {
"code": "200",
"message": "Skill Fetched Successfully."
},
"data": {
"skills": [
{
"statisticsMasterId": 1,
"ratingsFor": 1,
"ratingsBy": 6,
"score": 56.4,
"ratings": [
{
"skillId": 1,
"individualScore": 86,
"statisticsStatus": 1,
"skillName": "Shooting"
},
{
"skillId": 2,
"individualScore": 70,
"statisticsStatus": 1,
"skillName": "Dribbling"
},
{
"skillId": 3,
"individualScore": 54,
"statisticsStatus": 1,
"skillName": "Passing"
},
{
"skillId": 4,
"individualScore": 44,
"statisticsStatus": 1,
"skillName": "Defense"
},
{
"skillId": 5,
"individualScore": 50,
"statisticsStatus": 1,
"skillName": "Good Teammate"
}
]
}
]
}
}
where all the individual score contains the avg of all the ratings I'm using eloquent I want to do this in eloquent itself. how can I achieve this?
Thanks in advance :)