30.85% is the change from 577 to 755
Calculation steps:
[( 755 - 577 ) ÷ 577] x 100 = 30.85%
Formula
Percentage change = [(755 - 577) / 577] x 100
Subtract the new number by the original number
755 - 577 = 178
178 ÷ 577 = 0.30849220103986136
0.30849220103986136 x 100 = 30.85%