The Mathematics Behind It
Mathematical Logic
Current Percentage: (Attended / Total) × 100
Classes Needed to Reach Target (T):
Formula: (Attended + N) / (Total + N) = T/100
Solve for N: N = ((Total × T) - (Attended × 100)) / (100 - T)
Frequently Asked Questions
How does the 'Classes Needed' prediction work?
The algorithm uses a basic algebraic substitution. It assumes you attend 100% of future classes continuously (adding +1 to both numerator and denominator) and solves for the exact integer where your fraction hits the target percentage limit.
What if it says I can 'safely miss' classes?
If your current percentage is higher than your absolute minimum target, the mathematics will reverse. It will calculate the exact integer number of sequential classes you can afford to skip before the percentage mathematically drops below your threshold.
Is this tool accurate for all universities?
Yes, assuming your institution strictly calculates attendance on a flat Total Attended ÷ Total Held fractional basis, which 99% of global academic institutions do.