-1.52% is the change from 855 to 842
Calculation steps:
[( 842 - 855 ) ÷ 855] x 100 = -1.52%
Formula
Percentage change = [(842 - 855) / 855] x 100
Subtract the new number by the original number
842 - 855 = -13
-13 ÷ 855 = -0.0152046783625731
-0.0152046783625731 x 100 = -1.52%