32.35% is the change from 643 to 851
Calculation steps:
[( 851 - 643 ) ÷ 643] x 100 = 32.35%
Formula
Percentage change = [(851 - 643) / 643] x 100
Subtract the new number by the original number
851 - 643 = 208
208 ÷ 643 = 0.3234836702954899
0.3234836702954899 x 100 = 32.35%