68.6% is the change from 570 to 961
Calculation steps:
[( 961 - 570 ) ÷ 570] x 100 = 68.6%
Formula
Percentage change = [(961 - 570) / 570] x 100
Subtract the new number by the original number
961 - 570 = 391
391 ÷ 570 = 0.6859649122807018
0.6859649122807018 x 100 = 68.6%