-29.24% is the change from 855 to 605
Calculation steps:
[( 605 - 855 ) ÷ 855] x 100 = -29.24%
Formula
Percentage change = [(605 - 855) / 855] x 100
Subtract the new number by the original number
605 - 855 = -250
-250 ÷ 855 = -0.29239766081871343
-0.29239766081871343 x 100 = -29.24%