-34.16% is the change from 966 to 636
Calculation steps:
[( 636 - 966 ) ÷ 966] x 100 = -34.16%
Formula
Percentage change = [(636 - 966) / 966] x 100
Subtract the new number by the original number
636 - 966 = -330
-330 ÷ 966 = -0.3416149068322981
-0.3416149068322981 x 100 = -34.16%