-69.28% is the change from 993 to 305
Calculation steps:
[( 305 - 993 ) ÷ 993] x 100 = -69.28%
Formula
Percentage change = [(305 - 993) / 993] x 100
Subtract the new number by the original number
305 - 993 = -688
-688 ÷ 993 = -0.6928499496475328
-0.6928499496475328 x 100 = -69.28%