2127.59% is the change from 29 to 646
Calculation steps:
[( 646 - 29 ) ÷ 29] x 100 = 2127.59%
Formula
Percentage change = [(646 - 29) / 29] x 100
Subtract the new number by the original number
646 - 29 = 617
617 ÷ 29 = 21.275862068965516
21.275862068965516 x 100 = 2127.59%