-15.27% is the change from 969 to 821
Calculation steps:
[( 821 - 969 ) ÷ 969] x 100 = -15.27%
Formula
Percentage change = [(821 - 969) / 969] x 100
Subtract the new number by the original number
821 - 969 = -148
-148 ÷ 969 = -0.15273477812177502
-0.15273477812177502 x 100 = -15.27%