-2.75% is the change from 654 to 636
Calculation steps:
[( 636 - 654 ) ÷ 654] x 100 = -2.75%
Formula
Percentage change = [(636 - 654) / 654] x 100
Subtract the new number by the original number
636 - 654 = -18
-18 ÷ 654 = -0.027522935779816515
-0.027522935779816515 x 100 = -2.75%