-84.58% is the change from 966 to 149
Calculation steps:
[( 149 - 966 ) ÷ 966] x 100 = -84.58%
Formula
Percentage change = [(149 - 966) / 966] x 100
Subtract the new number by the original number
149 - 966 = -817
-817 ÷ 966 = -0.8457556935817805
-0.8457556935817805 x 100 = -84.58%