-23.52% is the change from 829 to 634
Calculation steps:
[( 634 - 829 ) ÷ 829] x 100 = -23.52%
Formula
Percentage change = [(634 - 829) / 829] x 100
Subtract the new number by the original number
634 - 829 = -195
-195 ÷ 829 = -0.23522316043425814
-0.23522316043425814 x 100 = -23.52%