-34.06% is the change from 960 to 633
Calculation steps:
[( 633 - 960 ) ÷ 960] x 100 = -34.06%
Formula
Percentage change = [(633 - 960) / 960] x 100
Subtract the new number by the original number
633 - 960 = -327
-327 ÷ 960 = -0.340625
-0.340625 x 100 = -34.06%