-40.27% is the change from 817 to 488
Calculation steps:
[( 488 - 817 ) ÷ 817] x 100 = -40.27%
Formula
Percentage change = [(488 - 817) / 817] x 100
Subtract the new number by the original number
488 - 817 = -329
-329 ÷ 817 = -0.40269277845777235
-0.40269277845777235 x 100 = -40.27%