-80.16% is the change from 993 to 197
Calculation steps:
[( 197 - 993 ) ÷ 993] x 100 = -80.16%
Formula
Percentage change = [(197 - 993) / 993] x 100
Subtract the new number by the original number
197 - 993 = -796
-796 ÷ 993 = -0.8016112789526687
-0.8016112789526687 x 100 = -80.16%