Year

Year 2019 is 79.49% complete.
79.4984956191907%

Month

Month 2019-10 is 55.38% complete.
55.3855039328729%

Day

Day 2019-10-18 is 16.95% complete.
16.950177065739663%

This site Dividing the year, month, day into 100 pieces and show the progress bar for you.

For example