70.05% is the change from 571 to 971
Calculation steps:
[( 971 - 571 ) ÷ 571] x 100 = 70.05%
Formula
Percentage change = [(971 - 571) / 571] x 100
Subtract the new number by the original number
971 - 571 = 400
400 ÷ 571 = 0.7005253940455342
0.7005253940455342 x 100 = 70.05%