-72.51% is the change from 993 to 273
Calculation steps:
[( 273 - 993 ) ÷ 993] x 100 = -72.51%
Formula
Percentage change = [(273 - 993) / 993] x 100
Subtract the new number by the original number
273 - 993 = -720
-720 ÷ 993 = -0.7250755287009063
-0.7250755287009063 x 100 = -72.51%