26.01% is the change from 646 to 814
Calculation steps:
[( 814 - 646 ) ÷ 646] x 100 = 26.01%
Formula
Percentage change = [(814 - 646) / 646] x 100
Subtract the new number by the original number
814 - 646 = 168
168 ÷ 646 = 0.26006191950464397
0.26006191950464397 x 100 = 26.01%