You are using actual values - you need to use Actual Statistics (projected to a 162 game season)
3.392(3000) + 4.444(225) + 1.916(634) =
10176 + 999.9 + 1214.744 = 12391 pitches for a 162 game season.
divided by 162 games = 76.4 pitches per game
After 132 games he has thrown 7708 pitches which is only 76 % of full usage (132 * 76.4 = 10085)
Your Kilroy has 4063 pitches left in the bank or 156 pitches for each of your team's remaining 30 games.
Unfortunately, if you try this he will show temporary fatigue from the infamous "tired from recent game activity". That's what the 99% thing was about, I imagine. He has not even approached in full usage at this point in the season.
By my reckoning, Kilroy should be able to throw about 147 pitches in a game before in-game fatigue sets in. (12391 pitches divided 84 games started)
This is one of those situations where you probably cannot get full usage of his allocated pitch count.