-89.53% is the change from 946 to 99
Calculation steps:
[( 99 - 946 ) ÷ 946] x 100 = -89.53%
Formula
Percentage change = [(99 - 946) / 946] x 100
Subtract the new number by the original number
99 - 946 = -847
-847 ÷ 946 = -0.8953488372093024
-0.8953488372093024 x 100 = -89.53%