32.97% is the change from 643 to 855
Calculation steps:
[( 855 - 643 ) ÷ 643] x 100 = 32.97%
Formula
Percentage change = [(855 - 643) / 643] x 100
Subtract the new number by the original number
855 - 643 = 212
212 ÷ 643 = 0.3297045101088647
0.3297045101088647 x 100 = 32.97%