-14.83% is the change from 964 to 821
Calculation steps:
[( 821 - 964 ) ÷ 964] x 100 = -14.83%
Formula
Percentage change = [(821 - 964) / 964] x 100
Subtract the new number by the original number
821 - 964 = -143
-143 ÷ 964 = -0.1483402489626556
-0.1483402489626556 x 100 = -14.83%