-29.65% is the change from 904 to 636
Calculation steps:
[( 636 - 904 ) ÷ 904] x 100 = -29.65%
Formula
Percentage change = [(636 - 904) / 904] x 100
Subtract the new number by the original number
636 - 904 = -268
-268 ÷ 904 = -0.29646017699115046
-0.29646017699115046 x 100 = -29.65%