-81.7% is the change from 989 to 181
Calculation steps:
[( 181 - 989 ) ÷ 989] x 100 = -81.7%
Formula
Percentage change = [(181 - 989) / 989] x 100
Subtract the new number by the original number
181 - 989 = -808
-808 ÷ 989 = -0.8169868554095046
-0.8169868554095046 x 100 = -81.7%