33.62% is the change from 577 to 771
Calculation steps:
[( 771 - 577 ) ÷ 577] x 100 = 33.62%
Formula
Percentage change = [(771 - 577) / 577] x 100
Subtract the new number by the original number
771 - 577 = 194
194 ÷ 577 = 0.3362218370883882
0.3362218370883882 x 100 = 33.62%