-91.08% is the change from 998 to 89
Calculation steps:
[( 89 - 998 ) ÷ 998] x 100 = -91.08%
Formula
Percentage change = [(89 - 998) / 998] x 100
Subtract the new number by the original number
89 - 998 = -909
-909 ÷ 998 = -0.9108216432865731
-0.9108216432865731 x 100 = -91.08%