42.9% is the change from 599 to 856
Calculation steps:
[( 856 - 599 ) ÷ 599] x 100 = 42.9%
Formula
Percentage change = [(856 - 599) / 599] x 100
Subtract the new number by the original number
856 - 599 = 257
257 ÷ 599 = 0.4290484140233723
0.4290484140233723 x 100 = 42.9%