-13.35% is the change from 966 to 837
Calculation steps:
[( 837 - 966 ) ÷ 966] x 100 = -13.35%
Formula
Percentage change = [(837 - 966) / 966] x 100
Subtract the new number by the original number
837 - 966 = -129
-129 ÷ 966 = -0.13354037267080746
-0.13354037267080746 x 100 = -13.35%