2673.91% is the change from 23 to 638
Calculation steps:
[( 638 - 23 ) ÷ 23] x 100 = 2673.91%
Formula
Percentage change = [(638 - 23) / 23] x 100
Subtract the new number by the original number
638 - 23 = 615
615 ÷ 23 = 26.73913043478261
26.73913043478261 x 100 = 2673.91%