-41.21% is the change from 842 to 495
Calculation steps:
[( 495 - 842 ) ÷ 842] x 100 = -41.21%
Formula
Percentage change = [(495 - 842) / 842] x 100
Subtract the new number by the original number
495 - 842 = -347
-347 ÷ 842 = -0.41211401425178146
-0.41211401425178146 x 100 = -41.21%