-14.29% is the change from 966 to 828
Calculation steps:
[( 828 - 966 ) ÷ 966] x 100 = -14.29%
Formula
Percentage change = [(828 - 966) / 966] x 100
Subtract the new number by the original number
828 - 966 = -138
-138 ÷ 966 = -0.14285714285714285
-0.14285714285714285 x 100 = -14.29%