71.6% is the change from 581 to 997
Calculation steps:
[( 997 - 581 ) ÷ 581] x 100 = 71.6%
Formula
Percentage change = [(997 - 581) / 581] x 100
Subtract the new number by the original number
997 - 581 = 416
416 ÷ 581 = 0.7160068846815835
0.7160068846815835 x 100 = 71.6%