32.82% is the change from 646 to 858
Calculation steps:
[( 858 - 646 ) ÷ 646] x 100 = 32.82%
Formula
Percentage change = [(858 - 646) / 646] x 100
Subtract the new number by the original number
858 - 646 = 212
212 ÷ 646 = 0.3281733746130031
0.3281733746130031 x 100 = 32.82%