-26.72% is the change from 842 to 617
Calculation steps:
[( 617 - 842 ) ÷ 842] x 100 = -26.72%
Formula
Percentage change = [(617 - 842) / 842] x 100
Subtract the new number by the original number
617 - 842 = -225
-225 ÷ 842 = -0.2672209026128266
-0.2672209026128266 x 100 = -26.72%