-66.43% is the change from 840 to 282
Calculation steps:
[( 282 - 840 ) ÷ 840] x 100 = -66.43%
Formula
Percentage change = [(282 - 840) / 840] x 100
Subtract the new number by the original number
282 - 840 = -558
-558 ÷ 840 = -0.6642857142857143
-0.6642857142857143 x 100 = -66.43%