80.15% is the change from 539 to 971
Calculation steps:
[( 971 - 539 ) ÷ 539] x 100 = 80.15%
Formula
Percentage change = [(971 - 539) / 539] x 100
Subtract the new number by the original number
971 - 539 = 432
432 ÷ 539 = 0.8014842300556586
0.8014842300556586 x 100 = 80.15%