-28.88% is the change from 966 to 687
Calculation steps:
[( 687 - 966 ) ÷ 966] x 100 = -28.88%
Formula
Percentage change = [(687 - 966) / 966] x 100
Subtract the new number by the original number
687 - 966 = -279
-279 ÷ 966 = -0.2888198757763975
-0.2888198757763975 x 100 = -28.88%