-72.21% is the change from 993 to 276
Calculation steps:
[( 276 - 993 ) ÷ 993] x 100 = -72.21%
Formula
Percentage change = [(276 - 993) / 993] x 100
Subtract the new number by the original number
276 - 993 = -717
-717 ÷ 993 = -0.7220543806646526
-0.7220543806646526 x 100 = -72.21%