-50.48% is the change from 842 to 417
Calculation steps:
[( 417 - 842 ) ÷ 842] x 100 = -50.48%
Formula
Percentage change = [(417 - 842) / 842] x 100
Subtract the new number by the original number
417 - 842 = -425
-425 ÷ 842 = -0.504750593824228
-0.504750593824228 x 100 = -50.48%