-32.93% is the change from 996 to 668
Calculation steps:
[( 668 - 996 ) ÷ 996] x 100 = -32.93%
Formula
Percentage change = [(668 - 996) / 996] x 100
Subtract the new number by the original number
668 - 996 = -328
-328 ÷ 996 = -0.3293172690763052
-0.3293172690763052 x 100 = -32.93%