-17.14% is the change from 840 to 696
Calculation steps:
[( 696 - 840 ) ÷ 840] x 100 = -17.14%
Formula
Percentage change = [(696 - 840) / 840] x 100
Subtract the new number by the original number
696 - 840 = -144
-144 ÷ 840 = -0.17142857142857143
-0.17142857142857143 x 100 = -17.14%