2678.26% is the change from 23 to 639
Calculation steps:
[( 639 - 23 ) ÷ 23] x 100 = 2678.26%
Formula
Percentage change = [(639 - 23) / 23] x 100
Subtract the new number by the original number
639 - 23 = 616
616 ÷ 23 = 26.782608695652176
26.782608695652176 x 100 = 2678.26%