Board Thread:Help desk/@comment-95.154.43.132-20130124122552/@comment-4708818-20130124164116

Or, to set it in a mathematical function:

$$A_{n}= \begin{cases} 1 - 0.01* n, & \text{if }n \le 50 \\

0.5, & \text{otherwise}

\end{cases}$$, where A is the amount of AP/Armor gained, c the number of souls already collected.