-22.14% is the change from 840 to 654
Calculation steps:
[( 654 - 840 ) ÷ 840] x 100 = -22.14%
Formula
Percentage change = [(654 - 840) / 840] x 100
Subtract the new number by the original number
654 - 840 = -186
-186 ÷ 840 = -0.22142857142857142
-0.22142857142857142 x 100 = -22.14%