-68.58% is the change from 993 to 312
Calculation steps:
[( 312 - 993 ) ÷ 993] x 100 = -68.58%
Formula
Percentage change = [(312 - 993) / 993] x 100
Subtract the new number by the original number
312 - 993 = -681
-681 ÷ 993 = -0.6858006042296072
-0.6858006042296072 x 100 = -68.58%