85.66% is the change from 523 to 971
Calculation steps:
[( 971 - 523 ) ÷ 523] x 100 = 85.66%
Formula
Percentage change = [(971 - 523) / 523] x 100
Subtract the new number by the original number
971 - 523 = 448
448 ÷ 523 = 0.8565965583173997
0.8565965583173997 x 100 = 85.66%