25.74% is the change from 645 to 811
Calculation steps:
[( 811 - 645 ) ÷ 645] x 100 = 25.74%
Formula
Percentage change = [(811 - 645) / 645] x 100
Subtract the new number by the original number
811 - 645 = 166
166 ÷ 645 = 0.25736434108527134
0.25736434108527134 x 100 = 25.74%