-59.62% is the change from 842 to 340
Calculation steps:
[( 340 - 842 ) ÷ 842] x 100 = -59.62%
Formula
Percentage change = [(340 - 842) / 842] x 100
Subtract the new number by the original number
340 - 842 = -502
-502 ÷ 842 = -0.5961995249406176
-0.5961995249406176 x 100 = -59.62%