-68.98% is the change from 993 to 308
Calculation steps:
[( 308 - 993 ) ÷ 993] x 100 = -68.98%
Formula
Percentage change = [(308 - 993) / 993] x 100
Subtract the new number by the original number
308 - 993 = -685
-685 ÷ 993 = -0.6898288016112789
-0.6898288016112789 x 100 = -68.98%