Define revenue bands with clear lower and upper bounds
Assign a score to each revenue band
Use consistent units for all revenue values
Place each company into the correct revenue band based on its annual revenue
Return the score associated with that band
Use non-overlapping bands to avoid ambiguity
Include an overflow band for revenues above the highest threshold
Include an underflow band for revenues below the lowest threshold
Keep the scoring scale aligned with business priorities
Update band thresholds periodically to reflect inflation and market changes