-85.2% is the change from 993 to 147
Calculation steps:
[( 147 - 993 ) ÷ 993] x 100 = -85.2%
Formula
Percentage change = [(147 - 993) / 993] x 100
Subtract the new number by the original number
147 - 993 = -846
-846 ÷ 993 = -0.851963746223565
-0.851963746223565 x 100 = -85.2%