-52.26% is the change from 842 to 402
Calculation steps:
[( 402 - 842 ) ÷ 842] x 100 = -52.26%
Formula
Percentage change = [(402 - 842) / 842] x 100
Subtract the new number by the original number
402 - 842 = -440
-440 ÷ 842 = -0.5225653206650831
-0.5225653206650831 x 100 = -52.26%