Hi! I need to figure out how to make some things. Imagine a situation when a boss create some task (folder) and assign it to a group of people. Each person of that group receive that task. At the beginning progress bar is set to 0%. If any person of group done some part of task he/she set progress bar to the next position (50% for example). If someone set progress bar to 100% it means that task is completed.
But I need some modification of this behavior.
If a boss assign task to a group then each person receive task independently. Every group person have to do this task. And if one man done task to 100% that it doesn`t mean that common task is done for 100%. Full completion of the common task means that every person of a group done work fully.

What is the best approach to achieve it?