42.83% is the change from 600 to 857
Calculation steps:
[( 857 - 600 ) ÷ 600] x 100 = 42.83%
Formula
Percentage change = [(857 - 600) / 600] x 100
Subtract the new number by the original number
857 - 600 = 257
257 ÷ 600 = 0.42833333333333334
0.42833333333333334 x 100 = 42.83%