-14.69% is the change from 960 to 819
Calculation steps:
[( 819 - 960 ) ÷ 960] x 100 = -14.69%
Formula
Percentage change = [(819 - 960) / 960] x 100
Subtract the new number by the original number
819 - 960 = -141
-141 ÷ 960 = -0.146875
-0.146875 x 100 = -14.69%