25.54% is the change from 646 to 811
Calculation steps:
[( 811 - 646 ) ÷ 646] x 100 = 25.54%
Formula
Percentage change = [(811 - 646) / 646] x 100
Subtract the new number by the original number
811 - 646 = 165
165 ÷ 646 = 0.25541795665634676
0.25541795665634676 x 100 = 25.54%