-22.03% is the change from 826 to 644
Calculation steps:
[( 644 - 826 ) ÷ 826] x 100 = -22.03%
Formula
Percentage change = [(644 - 826) / 826] x 100
Subtract the new number by the original number
644 - 826 = -182
-182 ÷ 826 = -0.22033898305084745
-0.22033898305084745 x 100 = -22.03%