-66.27% is the change from 842 to 284
Calculation steps:
[( 284 - 842 ) ÷ 842] x 100 = -66.27%
Formula
Percentage change = [(284 - 842) / 842] x 100
Subtract the new number by the original number
284 - 842 = -558
-558 ÷ 842 = -0.66270783847981
-0.66270783847981 x 100 = -66.27%