-23.24% is the change from 826 to 634
Calculation steps:
[( 634 - 826 ) ÷ 826] x 100 = -23.24%
Formula
Percentage change = [(634 - 826) / 826] x 100
Subtract the new number by the original number
634 - 826 = -192
-192 ÷ 826 = -0.2324455205811138
-0.2324455205811138 x 100 = -23.24%