-96.54% is the change from 838 to 29
Calculation steps:
[( 29 - 838 ) ÷ 838] x 100 = -96.54%
Formula
Percentage change = [(29 - 838) / 838] x 100
Subtract the new number by the original number
29 - 838 = -809
-809 ÷ 838 = -0.9653937947494033
-0.9653937947494033 x 100 = -96.54%