-98.89% is the change from 989 to 11
Calculation steps:
[( 11 - 989 ) ÷ 989] x 100 = -98.89%
Formula
Percentage change = [(11 - 989) / 989] x 100
Subtract the new number by the original number
11 - 989 = -978
-978 ÷ 989 = -0.9888776541961577
-0.9888776541961577 x 100 = -98.89%