-20.78% is the change from 616 to 488
Calculation steps:
[( 488 - 616 ) ÷ 616] x 100 = -20.78%
Formula
Percentage change = [(488 - 616) / 616] x 100
Subtract the new number by the original number
488 - 616 = -128
-128 ÷ 616 = -0.2077922077922078
-0.2077922077922078 x 100 = -20.78%