99.69% is the change from 319 to 637
Calculation steps:
[( 637 - 319 ) ÷ 319] x 100 = 99.69%
Formula
Percentage change = [(637 - 319) / 319] x 100
Subtract the new number by the original number
637 - 319 = 318
318 ÷ 319 = 0.9968652037617555
0.9968652037617555 x 100 = 99.69%