-98.79% is the change from 989 to 12
Calculation steps:
[( 12 - 989 ) ÷ 989] x 100 = -98.79%
Formula
Percentage change = [(12 - 989) / 989] x 100
Subtract the new number by the original number
12 - 989 = -977
-977 ÷ 989 = -0.9878665318503539
-0.9878665318503539 x 100 = -98.79%