422.93% is the change from 157 to 821
Calculation steps:
[( 821 - 157 ) ÷ 157] x 100 = 422.93%
Formula
Percentage change = [(821 - 157) / 157] x 100
Subtract the new number by the original number
821 - 157 = 664
664 ÷ 157 = 4.229299363057325
4.229299363057325 x 100 = 422.93%