Accurate EXP Calculator for Leeching/Grinding

[EDIT: Mirrors seems to have fixed the error. Give her calculator a try again if you haven't!]

I was using the Mirrors EXP Calculator and then realized that it didn't match up with calculations I did manually. I investigated how Mirrors was doing the calculations, but it seemed faster for me to just redo the logic myself rather than find the issue.

Here's the revamped calculator! You will need to create your own copy to use it.
https://docs.google.com/spreadsheets/d/1oiiW_WPR9T0VJvOReKM2G9XjA1RWGGEBiccCsb0T2As/edit?usp=sharing

Use it to calculate:

• EXP needed to get from level A X% to level B Y%
• Hours of grinding needed
• Hours & cost of leeching

It uses the same (great) interface from the Mirrors EXP Calculator, but should give correct results according to the MapleLegends EXP table. It's been tested by me and some friends!

Thanks to Mirrors for the original calculator and idea!

Feel free to leave any feedback.