-28.62% is the change from 891 to 636
Calculation steps:
[( 636 - 891 ) ÷ 891] x 100 = -28.62%
Formula
Percentage change = [(636 - 891) / 891] x 100
Subtract the new number by the original number
636 - 891 = -255
-255 ÷ 891 = -0.28619528619528617
-0.28619528619528617 x 100 = -28.62%