The code

H+A+R+D+W+O+R+K = 98%

K+N+O+W+L+E+D+G+E = 96%

A+T+T+I+T+U+D+E = 100%

Can you find the code that has been used to find out these percentages?


Clue 1: Each letter has a value.
Clue 2: The order is important.
Clue 3: Do you know the alphabet?