-29.47% is the change from 855 to 603
Calculation steps:
[( 603 - 855 ) ÷ 855] x 100 = -29.47%
Formula
Percentage change = [(603 - 855) / 855] x 100
Subtract the new number by the original number
603 - 855 = -252
-252 ÷ 855 = -0.29473684210526313
-0.29473684210526313 x 100 = -29.47%