-33.03% is the change from 996 to 667
Calculation steps:
[( 667 - 996 ) ÷ 996] x 100 = -33.03%
Formula
Percentage change = [(667 - 996) / 996] x 100
Subtract the new number by the original number
667 - 996 = -329
-329 ÷ 996 = -0.33032128514056225
-0.33032128514056225 x 100 = -33.03%