33.44% is the change from 643 to 858
Calculation steps:
[( 858 - 643 ) ÷ 643] x 100 = 33.44%
Formula
Percentage change = [(858 - 643) / 643] x 100
Subtract the new number by the original number
858 - 643 = 215
215 ÷ 643 = 0.3343701399688958
0.3343701399688958 x 100 = 33.44%