1909.68% is the change from 31 to 623
Calculation steps:
[( 623 - 31 ) ÷ 31] x 100 = 1909.68%
Formula
Percentage change = [(623 - 31) / 31] x 100
Subtract the new number by the original number
623 - 31 = 592
592 ÷ 31 = 19.096774193548388
19.096774193548388 x 100 = 1909.68%