We can look at the same numbers in different way: Error with 91.3% = 8.7% Error with 94.5% = 5.5% Error reduction = 8.7% - 5.5% = 3.2% So the improveme

We can look at the same numbers in different way: Error with 91.3% = 8.7% Error with 94.5% = 5.5% Error reduction = 8.7% - 5.5% = 3.2% So the improvement is 3.2% / 8.7% = 36.8%