-53.33% is the change from 842 to 393
Calculation steps:
[( 393 - 842 ) ÷ 842] x 100 = -53.33%
Formula
Percentage change = [(393 - 842) / 842] x 100
Subtract the new number by the original number
393 - 842 = -449
-449 ÷ 842 = -0.5332541567695962
-0.5332541567695962 x 100 = -53.33%