48.53% is the change from 577 to 857
Calculation steps:
[( 857 - 577 ) ÷ 577] x 100 = 48.53%
Formula
Percentage change = [(857 - 577) / 577] x 100
Subtract the new number by the original number
857 - 577 = 280
280 ÷ 577 = 0.4852686308492201
0.4852686308492201 x 100 = 48.53%