-29.1% is the change from 897 to 636
Calculation steps:
[( 636 - 897 ) ÷ 897] x 100 = -29.1%
Formula
Percentage change = [(636 - 897) / 897] x 100
Subtract the new number by the original number
636 - 897 = -261
-261 ÷ 897 = -0.2909698996655518
-0.2909698996655518 x 100 = -29.1%