on time delivery performance metric month-on-month

Hi, I am very noob and really need help on how to present my team member's performance on delivery of their work (mostly reports to their stakeholders or specific task).

In the attached excel, I have first tab to show consolidated monthly performance view. the other tabs shows the tasks per month and each task has a due date and already filled in the team's completion date.

What is the simplest way to show metrics on this in the dashboard or even just a month on month view?
Basically my only criteria is if report is delivered on time or not.

Any suggestion helps. thank you!