Improvement Rate
| Improvement Rate Formula | 
| \( FR \;=\; \dfrac{ SMT - FMT }{ FMT } \cdot 100 \) | 
| Symbol | 
| \( FR \) = improvement rate | 
| \( FMT \) = first month's total | 
| \( SMT \) = second month's total | 
Improvement rate, abbreviated as IR, is the percentage of increase from one number to another.

