-99.52% is the change from 829 to 4
Calculation steps:
[( 4 - 829 ) ÷ 829] x 100 = -99.52%
Formula
Percentage change = [(4 - 829) / 829] x 100
Subtract the new number by the original number
4 - 829 = -825
-825 ÷ 829 = -0.9951749095295537
-0.9951749095295537 x 100 = -99.52%