23
FIT100
Factors Precisely
A
factor of improvement is different than a percent improvement …
•factor
= new_rate/old_rate
•percent
= 100 x (new_rate-old_rate)/old_rate
•Expressing
an improvement by it’s factor is simpler, especially for large changes
•El
Guerrouj’s 7% improvement over Bannister is a 1.07 factor of improvement