24.4% is the change from 664 to 826
Calculation steps:
[( 826 - 664 ) ÷ 664] x 100 = 24.4%
Formula
Percentage change = [(826 - 664) / 664] x 100
Subtract the new number by the original number
826 - 664 = 162
162 ÷ 664 = 0.24397590361445784
0.24397590361445784 x 100 = 24.4%