33.45% is the change from 577 to 770
Calculation steps:
[( 770 - 577 ) ÷ 577] x 100 = 33.45%
Formula
Percentage change = [(770 - 577) / 577] x 100
Subtract the new number by the original number
770 - 577 = 193
193 ÷ 577 = 0.3344887348353553
0.3344887348353553 x 100 = 33.45%