I have no idea what I'm doing.

I'm going to try and make a thing wherein you can find the 99th-level experience value based on the experience formula from RPG Maker VX Ace. Please be sure to check the level 99 total exp value in RPG Maker VX Ace to determine if this worked correctly. The minimum total exp value possible at level 99 is 287,815, and the maximum possible is 7,738,286.

What ultimate experience value are you looking for?

Set base value to 0, the A acceleration to 0, the B acceleration to 0, and the extra value to 0. Then your ultimate experience value at level 99 should be 0.