-21.57% is the change from 561 to 440
Calculation steps:
[( 440 - 561 ) ÷ 561] x 100 = -21.57%
Formula
Percentage change = [(440 - 561) / 561] x 100
Subtract the new number by the original number
440 - 561 = -121
-121 ÷ 561 = -0.21568627450980393
-0.21568627450980393 x 100 = -21.57%