-60.94% is the change from 855 to 334
Calculation steps:
[( 334 - 855 ) ÷ 855] x 100 = -60.94%
Formula
Percentage change = [(334 - 855) / 855] x 100
Subtract the new number by the original number
334 - 855 = -521
-521 ÷ 855 = -0.6093567251461989
-0.6093567251461989 x 100 = -60.94%