-73.68% is the change from 855 to 225
Calculation steps:
[( 225 - 855 ) ÷ 855] x 100 = -73.68%
Formula
Percentage change = [(225 - 855) / 855] x 100
Subtract the new number by the original number
225 - 855 = -630
-630 ÷ 855 = -0.7368421052631579
-0.7368421052631579 x 100 = -73.68%