-96.43% is the change from 813 to 29
Calculation steps:
[( 29 - 813 ) ÷ 813] x 100 = -96.43%
Formula
Percentage change = [(29 - 813) / 813] x 100
Subtract the new number by the original number
29 - 813 = -784
-784 ÷ 813 = -0.964329643296433
-0.964329643296433 x 100 = -96.43%