0
He was born in/about 387 AD.
1624 years.
Around 387 BC, at the age of 23, he traveled to Athens to study with the followers of Socrates.
Patrick (then known as Maewyn Succat) was born between 387 and 390 AD.
27% of 387
= 27% * 387
= 0.27 * 387
= 104.49