Following the steps given earlier, we shall first add the last two digits of the birth year, till we get a single digit.
Thus, 8 + 1 = 9 (which is a single-digit number)
So, we get the number 9, which we should now add to 5.
Thus, 5 + 9 = 14 (which is a double digit number)
Thus, adding the digits we get, 1+4 = 5, which is the Kua Number.