26.52% is the change from 641 to 811
Calculation steps:
[( 811 - 641 ) ÷ 641] x 100 = 26.52%
Formula
Percentage change = [(811 - 641) / 641] x 100
Subtract the new number by the original number
811 - 641 = 170
170 ÷ 641 = 0.26521060842433697
0.26521060842433697 x 100 = 26.52%