32.61% is the change from 644 to 854
Calculation steps:
[( 854 - 644 ) ÷ 644] x 100 = 32.61%
Formula
Percentage change = [(854 - 644) / 644] x 100
Subtract the new number by the original number
854 - 644 = 210
210 ÷ 644 = 0.32608695652173914
0.32608695652173914 x 100 = 32.61%