-97.09% is the change from 998 to 29
Calculation steps:
[( 29 - 998 ) ÷ 998] x 100 = -97.09%
Formula
Percentage change = [(29 - 998) / 998] x 100
Subtract the new number by the original number
29 - 998 = -969
-969 ÷ 998 = -0.9709418837675351
-0.9709418837675351 x 100 = -97.09%