3543.48% is the change from 23 to 838
Calculation steps:
[( 838 - 23 ) ÷ 23] x 100 = 3543.48%
Formula
Percentage change = [(838 - 23) / 23] x 100
Subtract the new number by the original number
838 - 23 = 815
815 ÷ 23 = 35.43478260869565
35.43478260869565 x 100 = 3543.48%