-69.08% is the change from 993 to 307
Calculation steps:
[( 307 - 993 ) ÷ 993] x 100 = -69.08%
Formula
Percentage change = [(307 - 993) / 993] x 100
Subtract the new number by the original number
307 - 993 = -686
-686 ÷ 993 = -0.6908358509566969
-0.6908358509566969 x 100 = -69.08%