-74.5% is the change from 855 to 218
Calculation steps:
[( 218 - 855 ) ÷ 855] x 100 = -74.5%
Formula
Percentage change = [(218 - 855) / 855] x 100
Subtract the new number by the original number
218 - 855 = -637
-637 ÷ 855 = -0.7450292397660818
-0.7450292397660818 x 100 = -74.5%