66.55% is the change from 577 to 961
Calculation steps:
[( 961 - 577 ) ÷ 577] x 100 = 66.55%
Formula
Percentage change = [(961 - 577) / 577] x 100
Subtract the new number by the original number
961 - 577 = 384
384 ÷ 577 = 0.6655112651646448
0.6655112651646448 x 100 = 66.55%