-24.51% is the change from 816 to 616
Calculation steps:
[( 616 - 816 ) ÷ 816] x 100 = -24.51%
Formula
Percentage change = [(616 - 816) / 816] x 100
Subtract the new number by the original number
616 - 816 = -200
-200 ÷ 816 = -0.24509803921568626
-0.24509803921568626 x 100 = -24.51%