Need help on show the percentage status of child in level 1 hierarchy issue.

[kedar]

Hi Team,

I do have four level hierarchy 

Level 1 - Project 

Level 2 - milestone

Level 3 - task

Level 4 - subtaks

I want to show all three levels issues progress percentage in the level 1.

How I can achieve this in Jira cloud any suggestions and solutions please.

Thanks,

Kedar P