-13.57% is the change from 840 to 726
Calculation steps:
[( 726 - 840 ) ÷ 840] x 100 = -13.57%
Formula
Percentage change = [(726 - 840) / 840] x 100
Subtract the new number by the original number
726 - 840 = -114
-114 ÷ 840 = -0.1357142857142857
-0.1357142857142857 x 100 = -13.57%