-34.47% is the change from 966 to 633
Calculation steps:
[( 633 - 966 ) ÷ 966] x 100 = -34.47%
Formula
Percentage change = [(633 - 966) / 966] x 100
Subtract the new number by the original number
633 - 966 = -333
-333 ÷ 966 = -0.3447204968944099
-0.3447204968944099 x 100 = -34.47%