-15.48% is the change from 969 to 819
Calculation steps:
[( 819 - 969 ) ÷ 969] x 100 = -15.48%
Formula
Percentage change = [(819 - 969) / 969] x 100
Subtract the new number by the original number
819 - 969 = -150
-150 ÷ 969 = -0.15479876160990713
-0.15479876160990713 x 100 = -15.48%